иWӋx14ƪ
rg^wӭһȫµcµČW(ni)һвٿӋĖ|ԓWӋŶʲôӵČWӋǺõČWӋСʹиWӋx14ƪϣ܉

иWӋ 1
A(ch)Ҫһϵy(tng)ԵČWӋ@һʷA(ch)ӢZWӋӋĿѭuMּoҡ@WӋֳ傀WAΣˡ~~RZZ(jng)̲]ͬr߀ԔƶÿAεČWӋһÿģK
һģK
һֱڪqԥҪҪĸvһ^ABCĸϵʮqϠĚqСѶܳ@ͲΪov˵ČWһֱܶVӢZW߂ڿԇ@Kö~RZ˵ărֵ@چ~ƴͿZl(f)ÅsDz
ڶģK~~R
~R@Ӳ^~RҪxҪ'^c}xxһ~JRʮ߀DzJRՈӛסһc~Ҫܶf~RҪѽ(jng)һf~R~~
he~AZ(yng)ԓÿA(ch)СĘ䡣Ǿ߀Ǟg[6kA(ch)~RӢZMAWılc~RW@KDZ^ҪĎc
1~l(f)ҪԴҪúÌW~ʹ㲻xҲҪ cIJͬӢĵİl(f)cƴ(lin)ϵһ֪ôx֪ô
2όıA(ch)~R؏͵ر䌍ǰ6kA(ch)~RN~~Դȣȵ~Rͻ8kȻȻͿԑ(yng)~~Դͬxx
3ܛܶfЕͺҪܛܶܛŌW΄(w)òǰW˛]ԓԓ֮¡
ģKZ
DznjӢZZӡһF{ӢZ~_⣬ķͨxӢZ£L㕞nය̖ô߀Ҋ̖һ(ji)Zn ע͜oɢҲ֪ώvÿοԇxտ^P(gun)eһuŻȻ
(jng)^һӢZW߇LԇһܯČWZһmȻ ȥܲ˼hKӢZZȫJRZwϵķ֧}j(lu)
ȻZ@ôݵķDzᳫJ濴ZԾǺmķ
ģKZ
ÿZҪAΣ
1l(f)˜ʣ~İl(f)ӵBxxȣwWҊһģK
2ӢZ_ʽ@һӵľҪ~RZգwWҊڶģK
ҪӢZ˼SӢZW ӢZXطgȻһĵľgӢݔӢZ>ġ>ġ>ӢZģʽ҂fһӡHow to sayҊЇʽӢZЛ]Z^Z䌍_ı_(yng)ԓǡHow do you say this in Englsih ҂(yng)ԓoMoԼIӢZZԭh(hun)B(yng)ԼӢZ˼SγɡӢZ>ӢZķ(yng)ģʽ
3 fȫx_ ĿZˣå翴^С邃(yng)ԓи|ÿ҂ؿһXԼը^һ]á ]һֱԳ
ӢZWһݔ^ֻ̡һNȤζ^ߵݔԴߌWdȤLݔrg@NdȤп׃ݔ|(zh)˺ܶ༯Dz]мĥÿһ~ÿһ佛(jng)䌦҂һrֻĻ(yng)ԓúоӢĻһֻʮ犣x@һtҪׂСrPӛf fǛ]e
иWӋ 2
ڜʂиԇĕrҪoԼһ_ĶλüֱͶ뵽æČWȥ˽ԼͿԇ_ʼĵһ@ӿԼҵW͂俼ķт俼иһ(zhn)ԒôҪ֪֪ԼĿǰʲôӵӢZˮƽʲôrԇҪʂЩܵČWҪ_һӵˮƽԼÿͶٕrgĿǰ(yu)ݺӄЩȵȡ
Week 1ûA(ch)֪֪
ܵ}ڴûA(ch)иԇă(ni)KֲԇcԼR(zhn)ҪД(sh)Ҳ֮ďÜʂ䡣һܵ΄(w)ƺĥ`õĻA(ch)ǿ߷ֵĻʯ
Aٷָ
㌦иԇă(ni)ݺʽ߀˽ôh㌢иĹٷָOGJxһ飨ӢpZ棬øŶ⣬߀Ҫ嵽ĕrgѕеĘ}ȵȶһԼڷ֔(sh)ϵλǸǵ(yu)ӄݷքeԒfúã֪֪˷ّܰ(zhn)
B~
оOG֮һ헷dzҪĹҲҪĵһ_ʼǾǡ~oՓx Z߀nje~Rh@_һEx~RǸ|(zh)Ч}ĿıCڌrώָׂ߶֜ʴ_~RǸ\~Ҳǿֵ֮磬һЩ̫õ~Ͳذ÷ӛ̫Ԕֻӛס˼ԇ}гF(xin)rJһЩP(gun)I~RT~ͳ~tҪվw÷
ÿ씵(sh)࣬50ҾͲFڈԳ֣eٳɶ
Week 24x A(y)Z
ڶAε܃(ni)҂cx x A(y)f
ZԂfx ݔ루inputZ͌ݔoutputˣڏ_ʼAhZԵݔ룬@һӏx һҲZݔeزB(yng)ZûA(ch)Ȼ@ҲfҪȵԼX÷dz쾚˲_ʼӹP@ӵԒyttY(ji)ϵ̫䌍҂ČԺxͬrӡһ_ʼץﲻׂuu׃¹P@һڌ`M^
⣬иҪ^Ė|˶P(gun)߅¼rҪ錑߉ע½Y(ji)(gu)wԺB؞x ߿Zw䌍ܺΣһƪx֮Ҫһƪǻ^^@ƪ®WزxӛгF(xin)~rgԒ߀һxժbõ~M;ܰ͡һƪxJJWB~RZߣЧһƪ^ȥƪŶ
ϵʹԭҲƣx̫^Wg(sh)ĶҲԇģZZ{(dio)Á HY(ji)ԭscripts߀ԿY(ji)ٌõZ͆ѣ@AεľҲ|(zh)ÿCһƪx һ Z͌콻澚^æx ֮࣬ɲҪӛÿĹn~Ŷ
Week 58 fxȫ憢
AΞȫ fxҪr@һA҂ᘌĂMЌ헾Լ^`MЏ©aȱwrgԸ(j)rԼ{(dio)@Hoһ
һx+
ܶģ +Z
壺h(hun)(ji)헼ӏZ헾
һ}w{Y(ji)
@ΕrgľϲHи}ģM}ƴ}֮࣬ҿ xCNNVOANew York Timesԭ֭ԭζl߀cиԇ(ni)ʽ^Ƶҕv(ji)ĿTed@ЩǺܺõľزġ
һµиrgϿԷֳAǰǰһԼǰһ@һѭuM©aȱ^Ҳһ_̵^̡@µxҪ}ǏһǶȥxȥw}˼·Ȼُ~Rһ
ǰÿֻҪһƪ¾ͿֻǾķʽƽҪ^(q)e@һƪµĕrҪҎ(gu)rgҲǶʮһƪꌦ𰸲Ծͷһ߅Ҫú÷xһ¡xĸǰ^βÿԒÿ~˼ܸǺ}Ŀ(yng)²xҪмe}ĿY(ji)һʲôԭ?q)edž~߀Ǿӿ߀f˼Sʽcij}}߀дM@һƪȻپxһҪһɂСrx@һҲֻҪÿԳҪһɂСrȥxB(yng)һNX@ӷeһԼĠB(ti){(dio)ѵ
ǰһڿҕrgһλɴxģMҲһСr(ni)ƪx¡@NԜyþwԇrrgoȵĸX˽ԼrgϵıcđB(ti)M{(dio)Ȼ꾚ӷҲDZزٵ
ǰ2nj_AnjxfƽrĹҪǰ12ٶ}ҲxԽhҿǰ12ǰ^}Ŀóe}ĿȻһЩҊ~Rһ£ǰ3Լ^ă(ni)ٿһ^ӖͬWώv^ă(ni)}ٜһȻһN(wn)đB(ti)ȥ挦ԇ
ǰһи俼cҪ߿ԇMиģM֮DZMԇģʽn
иWӋ 3
һ ~wäһ~
~RһеĻA(ch)100hһҵ.rgQһ~ͱMP3 xo ͿZT
~Ӗ
и800010000ÿ300~һÿԱM5һһСrһlist@ӵĹ(ji)ࡣ
ڶ ᘌ fxĂַ헾
x
1ÿһƪµһMտԇٶҪ
2ҪJxһҳﲻĆ~Ly䣬~˼JLy߀ҪJe}
3^Ҫٰٿһ飬얹
ӖӖĕrԷ ȵ춨A(ch)rgԒ]õ̺ʽ עԼ˼S
ڿZ
1OGP(gun)Ϣu֘˜ʵĸX
2xfи YЦMP3
3^شfи }Ŀ
4شZ}Ŀ
5ռ~RZռ
ڌ
1}ĕָԅ
2~Z
3Vռ
4 Ц߷ġMP3
5b
}(zhn)g(sh)JÿһTPOY(ji)e`
һҪJ濂Y(ji)Լďr©aȱȡʺKaplanģ_ÿڰ3TPOһe}ŕrgY(ji)ӛ
иWӋ 4
Zÿʥ(jng)һһСr ǰȥԌIC(jng)߀ͦߵġrg.ͯЬԼZģ܌50ң16Сr@ӿǰֻҪģͲپ
x+ ʂ~ˢtpoѲĶӛ ]֙Cappи ˯Xǰ̈́eһСr }˯ ǷPӛڲPӛȫ һҪ(w)
ģģʣµĶ߀оǿ
W45Ӌ
ǰ30죺
1磺TPOһһףֻx TPO130
2磺~һСrx ӆZģÿ12
3ϣ~һСr˯ǰ 1Сr
3141죺
1IA(y)yСģǿZ͌
2CģMtpo31꣬5ףȫؿģMһ
3~1Сrÿ쾚Z11.5Сr
4ϣ˯ǰ ~һСr
4145죺
1ŰA(y)y֣Cόһ
2ᘌԏZ}Ŀ@rsСZ1ʮ}Z2ʮ}36xA(y)y
3Ͼ
ͲҪ}e˿ԶA(y)yZƪxÿ˯{(dio)(ji)
иWӋ 5
ڂ俼иiBTĿfҎ(gu)MиЧ俼һֱ_Ć}ώεĆ}֮һǡґ(yng)ԓôWґ(yng)ԓôȵȡ䌍ڲͬʂrg̎ڲͬ俼A(jng)^̶ͬӖĿĂ俼Ӌ(yng)ԓDzһӵģ@nԇоиZMČҾ͂俼ķҪ(ni)ᘌͬAεĿһͽh
Lڂ俼СûA(ch)ZZ{(dio)P(gun)I
Lڂ俼Ŀһָ俼rgһϵĿ(yng)ԓfиԇĿgͣҲɞиoijһЩʂȥxеҪиɿijˌڸ߶óɿδIǰ_ʼʂҲһЩһWMһõ˽î˄Ҫ85֡90ȻҲxƻоǰ֜ʂĿĿ@Ă俼rg^L^СԴAοcҪľǴÿZA(ch)ZZ{(dio)P(gun)I֪иZԇʮעZZ{(dio)fZZ{(dio)QĿZɿԒ mЩ䏈ZZ{(dio)_njZɿһӰ푵ġO(sh)λ߉l˼·(ni)ݺȶôһǿƫʽĿÝMֵ֣иԇУl(f)ʽߊAsЇطĿtһ̎ӄ@AΣһҪcӏZZ{(dio)ֱӵķģͨ^xWӢĸfӢ@Чؼm߰l(f)ÿҪԳ30犵һСrTl(f)ͬrҪÿY(ji)Ww{гF(xin)ijñ_αʾҺ_ġҺϲgȵճЌH\á֮Ҫ ˮƽAεĿTPO} zyԼ ˮƽҵԼ äc翼ҪJRԼdž~JR߀Լİl(f)`~ speakerfԒ^Bx~ֱ治ҪᘌF(xin)÷Pӛ࿂Y(ji)ᘌԵMоLܿ˷ ϵKZԇûA(ch)
ڂ俼JcᘌЧ
俼rg6µһĿ(yng)ԓ@rg(yng)ԓʂ^y^ֽ(jng)^˳ڵrP(gun)иԇӖָĿ俼a(chn)뵡JA(ch)rgԣoJԼһƿiρεֶĴŗAΑ(yng)ԓfҪAΣ鿼Ҫ@AҳIJԼزķe̫٣Ȳ߀ x¿Y(ji)l(f)F(xin)֮ᘌԵMоȫW(wng)@Ӳܽoě_AδԌĻA(ch)ȻڱAҲҪmԼİl(f)ģnative speakern
ڂ俼Z|(zh)c
ͨxԇֻʣһµµĕrgQڂ俼AΡ(jng)vLĂ俼^̶Ǟ(ni)ͻƿiP(gun)IZ|(zh)ֵ֮?ni)ѽ?jng)Y(ji)^ZijزĺՓ(j)tҪڴAMһeһЩ~þ䡱ԼһЩc.ӣĻشӹcȻעǿY(ji)ĺ~þҪf@Щ~þӰȾ͵òʧ֮xԃώMᘌԵһһӖě_̡ʹÙC(jng)MĿĵӖȰһ}ęC(jng)A(y)ywҳ}ٲMʹÿ}ӽ^ҲhώMІΪӖЧ
ǰһƽ(wn)飬C(jng)һ
ǰһܿҪزķeml(f)ȹˡCֿǰһܿY(ji)زm^İl(f)ڿԇжǸơֻн(jng)^LӖĿȾ׃ĿZTڿǰһ܃(ni)κ׃ҪMrg@ЩϡҪSCxTPOMģMÿԼϤԇՇÿC(jng)ڿԇRĕrƽoĶ
иWӋ 6
7¡~һ~wä
h1ҽQһ~ͱMP3 xo ͿZTá
~wӖ
ÿ200~겻˯Xи50008000һMԱ5һ퓣һСrһlistָ÷Ȃy(tng)~Rķԣһ(ji)һ챳b~RǷdzҪ
~RһеĻA(ch)A(ch)ɽu~RA(ch)Ժď׃pɣԶcڱ~߀Ǻֵõ
8+9¡ᘌ fx4ַ헾иԇh821
23DeltaOGȂ俼̲߀һЩfи}ĿA(ch)LongmanCϣ|MĴGTȻǧfe˿Z@ɂ^}@gҲҪһֱӖǰһrg xZĵķeۺTӖһrgZģ xď얹
xwӖ
1ÿһƪµһrMտԇٶҪ
2ҪJxһ飬ﲻĆ~Ly~˼Z֪RJLyͬr߀Ҫe}ɲ}ĿJeOG͝hPӛ}Ŀ߀бOETS}ĿһҪ}Ŀ漰(ni)мЄ漰}ă(ni)ݣB(yng)׳}ĿcĸXĦETSij}˼·ȵ@Щ@ƪҲͻ@r°xһ飬öxɱ@^䌍ǾxˡֻҪrgS^һεxöMx}ֻһ\@ҪֻJxա
3^죬߃ԺпյԒٰ@ƪ¿һ얹Еr߀ع֪
䌍ٶӰһ߀~R߀Ҫ~RϤ~ĽጣwֱӡijwLyҲxٶӰQkģиfи׃УȻԇrҲ]бҪÿÿ~xԽY(ji)ϡ}ԭtԼOGȲг}cİB(yng)(ni)ݵĸXĶF(xin)cx^@XB(yng)ҲǺҪྚԹ(ji)ʡһЩrgځáx¸䣬Ȼ}Ŀ(ni)(yng)}k
w
Ӗ_ʼӖĕrᵽķ ǂkȺA(ch)rgSԒ]õ̺ʽ עԼ˼SӖһRϼӴ߀Կ]ᵽ
xӖЦĵMP3ͬrӖĺͿZڵԒDeltaOGѰģеһЩ Á˶ ⣬Ҳ xԼY(ji)NZF(xin) ~R
hڏھ_ʼġ ˼Sһ濂Y(ji)˷dzSи~RZʽҊZF(xin)o˼Sģ档ڶ˼SdzҪģ£x䌍ZҲЎ岽tǙM?q)չͿvھ}ĕr@ɂEY(ji)ͬӌZҲЎb
Ҫע 䌍߀漰иĿZ};CόҲf 漰иķֵ^һxЇW^ĿԽh ӖĿrgO(sh)Þ fxĂһռ3545Ѹx ϵӖ Ԓ@rg߀Ҫټ10Hw߀ҪҸԵČ
w
1Jһݻɷ }ĿҪͣҪطҲҪijһ}ϻ̫rgMģMԇ
2ط ȫ HH}Ŀ߀Ҫע@ȫ Ҫ ײϵҪ(ni)ݵĻA(ch)ȥ (ji)ҲҪ(yu)呟ϵҪ(ni)ݵԷ 35Σ ĵطһ5֮ Ҳ ˣ@rֲܿ ĵطӡ̣ȻҪм꣬ЩطԼ`J 䌍] ȻٰѲ 12顣^䌍һ ֮@ΣЩ ϲ ˣ@HH㡰^һ顱
3^ώٰܺѮ^IJϡһ顱߀б^ԣĕrg24顣ȻĕrԽԽp һξͶ؏͵ Щ ^IJڴXϤ@ЩͿԇr Ϣĕrg䌍WZԱһϤ^̣܌eyϢЕrg܌ ϢMЕrg Ϣ֮MйPӛӛ䛡
̺ʽ w
1һи ģMԇһ 겢J}Ŀ
2_ʼԾӞλhʹÌTܛ糬x2ÿһ͕ͣȻһ䡣wLȿ˶A(ch)ܲõԒяľ_ A(ch)ܺõԒÿһ ~Rλ ÿӾwŵĕrM һξ͕ͣȻ y ͌ٷŃ飬ܛpٲ
3ȫ ꮅԭęzԼY(ji)] Ļ e`IJȻ ȫ12
4ϲEꮅh^m(x)@MиxӖ
P(gun)ڷ ͵̺ʽ СY(ji)
@ɷNӖ ܲekǰA(ch)kǏ^ЧҲãkɷNkǽڌ ϵĶJA ĻA(ch)߸ӛ͆~ƴZZжMӖ Ҫڃ(ni) ϢMлؑģXҲֻӛס@ЩϢġsˮ桱Ҫͨ^ZZv@ЩϢa䡱⣬ڕrgܾo Ϣ һNknj ϢԼڴXMлؑ룩䌍 ڏVxϵľ Ԍ һNkӖôһNԲҪ{(dio)IBTԇҪͶ ֣oՓǷNkMӖҪ֮Ժ㣬͑(yng)ԓһ
Zw
˕rҪһЩZĜʂ乤ڱ~AξMZA(ch)ܺôҪTAεĵһ£Ϥu֘˜ʣ䌍ĎNkҶxIJöڌͿZA(ch)õķţfЦпյԒÿԳֿxһһƪx꣬Ҳö|شfи}Ŀܸmϻ_yT̫Tfи}dzhلt5t15
1OGP(gun)Ϣu֘˜ʵĸX
OGÕϵĿZBu֘˜ǷdzFY^翴 ڽZ˜ʣf_ԼZҪ_ķ
2xfи YϣЦMP3
partCxڿZ46}ҲЎǺܶࡰ^ʹWg(sh)Ԓ} f^yxpartCڌWg(sh)Ԓ}ܴ^õĻA(ch)fи Ķ̌ԒpartAmȻȡZ߀Ǻܵص҈߀У@ͿZ35}ӽЦMP3(ni)ϺͿZǰ}ǵڶ}ܽӽmȻƪȿZشҪLܶsҲmӖ犵Ė|f쾚1犵ĿZ_Ҳͱ^pˡ
3^شfи }Ŀ
˷ и Ϣ}Ŀᆖ_ʼֱӿ^ش شֲشꮅſ_x헵փ(ni)ݡfи }ˡx֮.}Ŀ }ĿԼڲx헵r¿^ش䌍@һNܻĿZ}Ӗشă(ni)݃HHһԒmȻ }Ŀǂ_x헲ΨһҲһԅյ_ش@NӖڿZA(ch)f_A(ch)õġһN^õTӖ^˷Ҳ һҪԽh һĻA(ch)پҿñ^fи }ĿһfԽf}ĿԽסȻZA(ch)f_^õԲMдӖ
4شZ}Ŀ
䌍иZ}Ŀă(ni)ϣиĺ^شƪ϶˺ܶԣԼ^ش^һ@Щ(ni)ڰl(f)F(xin)}ͷȻٰĺă(ni)ݶxbӖҪǿZǰ}eǙC(jng)}䌍˷ҲmڏAΣC(jng)ǰ}ܜʂɾ̲ԇĕrϤ}Ŀ}ѽ(jng)^b^IJЩÈ@ڶ̶15ʂ䣬45شĿZǰ}߀вС
5ռ~RZռ
ZشƪmZ߀ǿҪһh(hun)hռZĵP(gun)~R~MeZD(zhun)ϵ~R~Mڱ_B؞вСĎҪƴ֣Ͱl(f)f⣬Z漰Wg(sh)Ԓ}e46}߀ҪY(ji)x Ϻ͡~ӛϤNWg(sh)~RmȻһҪƴCόmȻҪWg(sh)~RxϿԴ֕rRӛ߀Ҫl(f)ҲZ֪RҲܺԣ@ǿc֮һҪ쾚գ˻شĕr鿼]ZʹöMrgشĕrF(xin)@Ze`ͷdzϧˡռҪָZǰ}eǙC(jng)}õĿǰѽ(jng)вѰl(f)ؕIԜʂõزǽh߀Ƕǵһ}Â˻һЩ^ͬrҲҪע⣬Ҫ邀˻б_^ԔĂϢҲҪ漰ڽεԒ}
A
@һAҪǸᘌԇӖhԒڱ~tOGDeltaĿ^}rM@ׂkhöڏrȻA(ch)ܺõţҪһͲ
1^ش}
ǰ}Ӗ}ĿǸN̲ĵĿZǰ}ߙC(jng)}Ŀhrg15ʂ45ش𡣺}Ŀǰ߀]eͿԇӽ}ĿȻOGͱOnjWÕ}ĿETSͿԇdzӽ}һҪJ挦Delta35}߀ǺͿԇ^ӽZӖҲһЩ}Ŀ^ӽrg}ҲͬӽhrgͬrMԼĻش
ȻԼJ ԼڵĆ}Mһ
⣬ڕrgܾoˁf߀Ҋp1犕rgģMԇh(hun)MпZ12}ĻشӖһҪfaҪĬ
2ʂǰ}Ķ
@TAΡشZ}ĿҲՄhԙC(jng)}Ŀ}Ŀo߀Լу(ni)}ĿһʂܶزĶͨõҪԼRڶ̶һ犃(ni)ش𮅾yfĸZδػشúܺԣȷe۴زԇrġزĎ족ȡ(yng)ό}}Ў
3ӖPӛӛ䛵
Pӛӛ䛵ҪᘌZ}Ȼ֮ǰҪһ A(ch)ȻPӛӛ䛕 Ӱ푣 ӛoM
4J}
@nj(zhn)AεıҪh(hun)(ji)mȻĿǰZ}|(zh)߀ǷȱҪ46}ձƫyǽӽ(zhn)µĴ}ՇƽrӖrܲһڿZЇWձA(ch)^IJHԇĻشrgַdzʿZԇɞ鿼ԇroIJڿǰe挦ӋCڿԇrowʹl(f)]Լˮƽ
w
1}ĕָԅ
ĻA(ch)h̤̤Ŀ]ݷĶǺܺõIJĕrһZwע~Rʽ\ãעռP(gun)~ͬx~˼·ͽY(ji)(gu)MUՓCעⷶĽY(ji)(gu)ϵIJЩƼСB~ĵĕr߀Ը(j)f}(ni)ϵķп}°ăɱĕЦѽ(jng)M˷ţṩ˷бķĿһ̶ߏЧ(zhn)Mָ֡ԅtڏھͿ(j)еĽh(yng)ďȻCָ̲eOGP(gun)ڌĽhǺܺõČW(ni)
2~䡢Z
f}ĕָԅÁă֧ô~Zt̤(wn)A(ch)penjڌA(ch)εˁfͨ^~eJ濴^~R÷ZWZҎ(gu)tģ^õոNʽ\P(gun)~Zxԅţ˵ăɂP(gun)
3Vռ
ZԻA(ch)p߀Ҫ˼·Ӂ|ҪTWE185}Ŀ͙C(jng)ϵĪ}ڌA(ch)̫õġhԾy(tng)ġ_^Σ23gΣY(ji)βΡķʽA(ch)^ˣҲԌ`Щijһ^cչ^_ijһɂfԔɢǺıB؞˼뱣һ
}țQw˼·ȻгwķՓcÿՓcҳһЩӁf@ҪעӵxMӻҪ̫塣ʂfЇF(xin)ںܶ˓܇fF(xin)ڵЇѽ(jng)ԽԽ˓Լ܇A·ڿܶ_܇BؿܶͣԼ܇CЈܶڽoԼI܇@ӵӾͱ^ζfҹưӰԺ܇ͣ܇ͣM͵܇½ľס^(q)܇ѽ(jng)˱횵O(sh)ʩ̓rĝqѽ(jng)ɞͨճP(gun)עԒ}@͵Ӿͱ^ĻA(ch)^߀ԾijһɂӾwչ_茑һЩ
4 Ц߷ġMP3
Цġ߷ġMP3߀MһЩoӖ̺ʽ ܌ǴA(ch)һĎ һ䣨䣩ͣһ䣨䣩 k䌍XֻյȫϢһsҪؑԼһЩZ֪R߀ԭȫԭʼϢ@^呟ZԼz~ƴ^@k^rgrgܾoġA(ch)^õѿԲá
5b
@bČǾʵľҲһȫġĎױĕă(ni)Ҳ(yu)ӢZ^āf߀xиĽӽZԵصƯ±^
h@һAڿǰ23(ni)_ʼhǰ1»Y(ji)M_AΡ@һAҪһݔӖĹ
1
@Ҫָsڿǰɂtһ¾Ҫ־A(ch)^ֱӌһƪ£ҲҪ̫ϕrgA(ch)̫ԲޕrֻһɂBׂӶyǾČϵľӰ߰ķgķģЦģԼԇԇӢZ_P(gun)ڌ䣬ҲԲȡͬr(sh)_^(sh)Y(ji)β(sh)gεkA(ch)߀ԽY(ji)Լڏx ȃ(ni)һЩ½յĆ~ZY(ji)(gu)Lԇڌ
2Č
@ҪҲָԼĪĵĸČHHһƪDzһ棬@ǘӵĆ}һҪӳă(ni)䌍жN_ʽ@ԿZԌϵҲǽY(ji)(gu)ՓCϵġČһl(f)F(xin)}呟_ԵЧkЗlԼ^ɱ֮ӢZώߌֻͿڰl(f)F(xin)}^õĎܺõĽhҺԼԇMĿһģҲһܺõkڶԱ_fҪԼܶώױ@ӿھ?q)ijһԒ}ՓC˼·Լձͬx~öӻ_iBTľCό䌍ǰյx ϢMһw{Ĺ̶ܴϾnjԭϢԼԒ١ČһԶԼĪČҲ܌CόС
3^m(x)
һ^m(x)ģ˳ČWZԺͽY(ji)(gu)֮߀Լºͬһ}Ŀ}ĿķMб^wͬ˼·һ棬Ҫָԅeǡ(zhn)TOEFLiBTĝM֡һеġMֹԡԵă(ni)JWY(ji)ԼrᘌԵMЏӖA(ch)߀t߀Ҫ^m(x)˕ġY(ji)(gu)ԡԡȻA(ch)¹(ji)
4CόӖ
Cό䌍߀Ҫ^õ A(ch)xA(ch)ԼPӛӛǰߑ(yng)ԓиǰ^õķewCό\߀Ҫ呟̕rgѸ˽x еҪcԼ(yng)C
_AΣ
@ržxԇ߀а낀¡гÿһ(sh)ҾͿ_ʼÿޕrһƪģȻЕrgԒ߀ǰĶĸģ˻Ո
иWӋ 7
һʂһҪ
ʮµ^һиɿஔ䡪76һοrȫ֪иǂʲN|XԼӢZ߀OGtdelta СR ^ӵĿZɵȥˡ
һψx {ǰĵ߀܌^ȥZзN˵ĸXfһ}ĕrȫ֪ԓfʲN45Ͱl(f)ˎׂȻ23456}һӑKȫ֪Լڸʲô@N^ҲϹˡXD(zhun)KҰ
ϣȡҵĵһcӖǧfҪԞԼӢZٶٷӢZīIôô⽻ôôtиoӖ
đB(ti)һҪ
ҵһиϹԺđB(ti)һֱܲdzһnjиđ¸ņʧՈđB(ti)ʮָedzֺÿʧ23c]˯˯ҲҪجѡ@NđB(ti)oďиՈһҪ{(dio)đB(ti)ǧfҪԼ
rgһҪ
һNвҪnÿŌWи1415Сr1718Сr
ӋһҪ
Ԕfһһиİ
һܣ xZ
һܠB(ti)ܲmȻÿ˯߲5СrȻҪʮׂСrWи
ÿһTPO һ} ɱ}ı һ һ鲢x𰸣ÿ컨45Сr
xÿһTPOһ}ٿһ}ȫķge`𰸡ÿ컨45Сr
ģ09C(jng)}Ŀÿһ}ĿҪԼ˼ҵĺժþöΡÿ컨23Сr
ZZ潛(jng)3456}һܿZcֻÿ¾12Сr
ڶܣZ~ x
ZZ潛(jng)ܿZcһȫ3}ܶȫ쾚4}Դȫپһ34}ȫپһ56}ȫپһ6}ÿ컨68Сr
ÿTPO һ} ɱ}ı һ飬 һ鲢x𰸣ÿ컨23Сr
xÿTPOһƪƪһ}ٿһ飬}ȫķge`𰸡ÿ컨23Сr
ģ09C(jng)}Ŀÿһ}Ŀ˼ҵĺ£ժþöÿ컨23Сr
ܣZ~ x
ZTPO3456}ܿZ߀cһ19TPOĵ3}ܶȫ쾚4}Դȫپһ34}ȫپһ56}ȫپһ6}ÿ컨68Сr
ģ09C(jng)}Ŀÿһ}Ŀ_ʼԼÿ쌑һƪȻÿ34Сr
~wuώ~d`tr~ԼIģɱQÿ34Сr
ÿTPO һ} ɱ飬}ı һ飬 һ鲢xÿ컨23Сr
xÿһƪTPOһ}ٿһ}ȫķge`ÿ컨23Сr
Z~ x
Z09C(jng)12}ܿZǴc09C(jng)12}ÿ}^ÿ45Сr
ģ09C(jng)}ĿĴcÿ쌑߀ҪԼǰġÿ45Сr
~wuώ~dģtr~ԼIģɱQÿ34Сr
cxҪՈÿ춼Ҫһc}С
ÿTPO һ飬} ɱ}ı һ飬 һ鲢xÿ컨23Сr
xÿһƪTPOһ}ٿһ}ȫķge`𰸡ÿ컨23Сr
һҪԼ
Լ(jng)^һµħӖһ]}
ҿ12.11rһҹ]˯Ҳ֪o߀d^Y(ji)ˈ^X߀ǟo
ԇrđB(ti)ҲҪ}ͲҪȥú߀ljģ12.11rXԼ OK̺߀Ԟ 20]뵽һȻ24
^Z^XԼl(f)]ı^ãfҲY(ji)Ҳֻ23֣ԼĸXDzʵģM
иWӋ 8
fиԇҪyЩǛ]ЌyܶͬWcиԇ҂ҪđB(ti)Mͻ100иָ90+ͬW^Ոоtop25ČWУ100+߀Dz̫^
Here isһλ100иͬWČWӋWиҲҎ(gu)ɵČиWMA΄ӢZˮƽԽԽá
иWAһT
ڜʂиԇҪTûA(ch)@а~OG ġ@ǣ~RһOG^麆ε ϣfиPart Cķġ@һиWAδҪ34ƽÿ35Сr
Ҫ΄(w)DZ~ͿOGՓDZb÷ĸ~߀DZb~ӛ@N˼~R]ڱbͬr MP3Xá ķʽӛ~ʲôҪ{(dio)OGͨ^OG˽иԇĸśrиx⣬rgS 팍F(xin) 3Q һ䣨䣩ͣһ䣨䣩 ٌٕͣ ǰѵһɡ
иWAζݔ돊
һĻA(ch)ˡ@һA_ʼM뵽иAΣ}˳нǰἰx@һAΰ ҲcУOGDeltaSx ˼S(zhn)TOELF iBTĝMķģ߷ġЦ߷ġiy䣨hrg^ֻĿ100+ãDZ^yҵ@ЩԒҲԵ100}drg5ƽÿ56Сr
@ҪfOG^}һҪҪ34ðDeltaҲ2x֮}ehJ濴 ˼Sһкܶܺõ ֪RӖĿY(ji)^@ЩԼһЩӢĵw혱ˮƽ
x ҪӖ䌍߀Ǿиxľ}rиԇǘҎ(gu)rg(ni)}ĿȻҿY(ji)ͷٰмһɱ飬ͬrw{~Ly}˼·ֻҪrgShÿ܌һƪޕrҪ2^һЩԲޕr@иԇǺЎ
иWAݔ
ͨ^һϲx ݔ돊ݔ@һиWA4ÿ56СrҡиhÕУOGOǽ̎Õ(zhn)TOELF iBTĝMķģDeltaZ}JJZԻA(ch)ҕrg^錒ԣԒ߀Ԝʂ䡶¸ӢZ3ԼһZ
һAͨ^иx и Ӗe(yng)ԓиԇеĺͿZһ.TӖ@һAξҪԼҪЩ翴VeӸČx ϣOGu֘˜ʵxͷѽ(jng)^һЩĺf^Z}ǰڛ]MкֵܳTeۣôֻܬF(xin)ץoMһЩȻMD(zhun)댍(zhn)Ӗ
@һAҪҪcһǶfҵҪޕrشӖ̕rg(ni)ZԵ{S@Ҫ{(dio)ģܶиԇǰ]ע@cʮֱ䌍Ȍf߀Ҫһ㽨hĴΔ(sh)5ЗlԒ˴һġ@ҿ]100ľW(wng)վ}߀cuģX߀e
fһ䣺~x ďҲҪ
иWAģģ_
@иԇ_AҪ߀Mm(yng)ԇ(ji){(dio)àB(ti)ȡںͿԇƵĕrgrgڿǰ12ҪõиԇYУTPOǰʹ^Y
@һ呟CĕreRԇĕrҪ߀ͨ^NģM}Ӗÿһ}ȻY(ji)ͬrMпǰ^ĸNϣ©aȱf߀ҪMһЩᘌԵӖMЏӖnjձXyČWg(sh)ӶӖһЩ enjWg(sh)ӣ ԼԒ(ni)
иWӋ 9
и·֞һׂAΣ
1˽иԇиԇʲôô
2~Z쾚
3Ќ߸
4_c©aȱ
䌍ÿA֮gĄֲ]ôͬA֮gҲغϵDZ~@飬һֱ؞俼ʼKô俼rҪעЩʲôأ
1俼rgձ^LoԼֺAκĿĿLĿһһк
2俼ڲ鉺ߕrgoȶy
һAΣ˽иԇ
@һAҪõ飺
1P(gun)ڈ
A(y)һԼĕrgһ£ע~̖xλ҈鿼λһyRrȻQҪȰѿλxҲƶܵĂ俼Ӌ
2P(gun)иԇҪ
һJxOGx u֘˜cPӛ
OGӰOGXTPO@ӼʡX֏һ_ʼ呟ԼLrgX}
ڶAΣ~Z쾚
@һAҪõ飺
1~
ڂ俼Aγ~@_һȻڱ~^҂(sh)ҲһЩ`^(q)
ʲôӵ~R^أ@}_ʼ俼Գm(x)ԇ䌍ϴи俼~Re߶ṩMӰdz@ȡcxʲô~RI(y)I(y)
~RJ֪һ͵ҪWe~RһLڵ.~ԴxДxһ~RҪ˜~ҪпƌWķεġ؏͡ҲЧ
2Z쾚
]ZZYϺܶ࣬@ČõĽǶһ£ZZʹõҎ(gu)tc䱧һZ÷ČHʹól(f)ݔǶȣx ЩZceҪעݔǶȣf͌ЩZc׳}ҲfֱȥxЌHLy䣡
]GRE/GMAT/LSATLy300vȾ
AΣЌ߸
@һAҪõ飺
1x
yԇWˮƽČWg(sh)ncµ
x~RReʹ߉P(gun)ϵ@ЩҪᘌͬƬMᘌԵӖͨ^~Q~RReͨ^ӷӖ߾~R;A(ch)ڴ˻A(ch)ϣͨ^xPӛ߉ӖxP(gun)ϵ½Y(ji)(gu)@ȡ
2
֜yԇZڌWg(sh)h(hun)ѱ܉ vՄԒ
ҪQи }ҪQ fʲô fʲôԼӛסfʲôĆ}}(yng)քe xƥԼ ߉Ӗ@Щ҂ҪᘌͬƬMᘌԵӖ (ni)ݣ ҪӖRel(f)R׃F(xin)R(ji)ԌӢZн(jng)F(xin)İl(f)׃F(xin)MZReӖ~MӛȾQ@}
܉ (ni)ݣxƥҪMвͬλµxƥӖ糣~ g gȾӛס (ni)tҪȺȡӛPӛ@ѴӛPӛǼg(sh)äĿذ ă(ni)ݶӛܴܿ}ĕrȻһ^Fˮȫ֪ԼӛЩʲô@ɻͬW]ӏGώ Y(ji)(gu)ࡣ
3Z
ZҪё(yng)ԓ܉nÃ(ni)ɹӢZc˽ՄZֿWڌWg(sh)h(hun)ЧՄ
ϤиZԇ}ĿĻA(ch)҂߀ҪQfЩ(ni)ݡôfȆ}JxOGu֘˜ʾ͕l(f)F(xin)pronunciationintonationȻҪ(ni)ݣcontent+structureofyourcontent@23MֵěQc
Ӗ@Щ҂ҪᘌͬƬMᘌԵӖҪ挦Ԓ}Ԓfǡ?sh)ı_(ni)ݣԽY(ji)Mʽͨ^^XLʽӖضԒ}MЃ(ni)زĵķel(f)Ć}ͨ^ģQ
4
ֿ쿼ڌWg(sh)I(lng)еČѱ܉ЗlķʽԼ^cڴҪ҂Ҫһزķe܉Y(ji)ضԒ}__}^ce܉֧^cЧCҪ܉Mȫƪ½Y(ji)(gu)ʹЗlķʽ_Ϣ܉ԺͷՓ(j)չ_Փ܉Ҏ(gu)ʹZ~RԼñ_ʽ
Cό漰 ģӖsҪcηeÿܾ2ƪDzelȫ֪TώĹ_nhһҪ һM䛲nI˳̝
_c©aȱ
_һcиԇyԇ˷dzäĿˢ}
ԭc挍ԇyஔ?sh)}Ŀ(sh)࣬ĿǰٷTPO^40κΙC(gu)^ģ}]κk_Jʴ_Լ(qun)}ˢ߀Ǜ]ôkأ
TPOһҪJϧһ鰴ԇIJE֮ҵώͬWһӑՓԼcԇҪƥrJ挦ģ֮ĽY(ji)Ԟďṩָx©aȱ
иWӋ 10
1_ԼĻA(ch)
ЇWձxZʧĽ죬x÷ֵIJҪnjԼĻA(ch)MһλDzǸ߷^ļ^@XĻA(ch)(yng)ԓ]І}㌦Լ.A(ch)ãȻƪOGϵxԇԇxDzdzxdž~ԭԒՈȱ~ZԒՈȏZxȥܵđ(yng)ֵԒôϲȫ^һTAΡ
2TA
] LONGMANGƤԓcǣ^Σ}ĿҲM
@ĺ̎Ԍ}Ђ^JR߀B(yng)}XӖ}
Ҳʹ95֮ǰfT}cҲǺ}˼·иȫһһ}
3A
OGDZ]DELTAOGΨһӽԭ}ĕoՓij}˼·(ni)ݶIBT}һHyȱ挍ԇԺDELTAҲǺܽӽ}һ}}ĿO(sh)õĽǶȁfஔeģϵиYϱ^Խh߀ǵðOG OG+DELTA
иWӋ 11
и4ֽMɣ@4ǰڶһĜʂyºώXX꺮иWӋ
иɹcP(gun)IhһǻA(ch) ӏҪԼm(yng)ӢZ h(hun)˽Լ B(ti) + Ӗÿĩ ϵyҪһЩҵmԼ ɺͷҪᘌԇ }͵Ӗm(yng)и }ǼӏAΣҪ}ģM}ȥyԇrgȫ ֺȥ𰸣Mз
иxԇ~RҪܸ~RஔhWoԼӆ~RWĿҎ(gu)ÿ챳30~һY(ji)һεȡ~rҪעͬx~x~ČW࿂Y(ji)eۡ}rҪ}Ŀٵc}ĿP(gun)ă(ni)˼xxٶĕrһҪoԼޕrиǙCLrgXLƪӢZm(yng)ƽrˌϵ}ĿXxg[W(wng)վҲDZġ
Zķܶ҂nһvx߀ھW(wng)ЩP(gun)lҕlLJģqՓِxeW?ni)κҪַdzλUʽ͵ȡҪ}Ӗ.rӛPӛԼvԒ˼·_ʼf
ּAοͻҲҪƽre۵ġĻA(ch)ӢZӛ}ȥҪһ׃D(zhun)Q|(zh)׃^⣬ˌĺĦČ˼SĬD(zhun)׃Լʽ˼S͌ģʽ
иWӋ 12
иTest of English as a Foreign LanguageȫӢԇеҪһh(hun)WՈıCиԇȡø߷֣wиWӋǷdzҪ҂иWӋMԔ̽ӑϣoVԆʾ͎
һƶиWӋıҪ
1ÕrgYԴ
иԇһҪһrgʂĿԇҪڶ̕rg(ni)_߷ˮƽMЧĕrgҎ(gu)ͨ^ƶƌWČWӋԸõÕrgYԴ_°빦Ч
2ߌWЧ
иW^вHҪMrg߀ҪMиЧČWͨ^WӋʹWӋᘌԵMЌWߌWЧ@øõijɿ
3W
ƶWӋ_Ŀl(f)WWğͷeOʹJ؈ԳW
ƶиWӋIJE
1r
ƶWӋ֮ǰҪ˽ԼˮƽcMģMԇɿʧԭĶҳh(hun)(ji)_W
2O(sh)Ŀ
ĿnjWӋҪһh(hun)ƶƵĿ˿ԎWзMЌWl(f)W
3_W(ni)
W(ni)Ҫ(j)rO(sh)Ŀ˴_ƶÿÿW(ni)ݵӋO(sh)ÿČW
4rg
ƶWӋrWҪrgMЧƶһԔĕrgҎ(gu)ÿÿČWrgrgMá
5(zh)Ӌ
ƶÌWӋҪJ(zh)Wͨ^ӛÿWă(ni)ݺ͕rgȷʽMбO(jin)ͷ˼ƲMWӋ
иWӋă(ni)
1 Ӗ
и ռ֔(sh)ķ֮һ ӖиWӋеҪ(ni)ͨ^ } ģM} ͑(yng)ԇļɡ
2ZӖ
иZռ֔(sh)ķ֮һZӖиWӋҪIJͨ^bZġģȷʽZ_ZС
3xӖ
иxռ֔(sh)ķ֮һxӖиWӋP(gun)IIJ֡ͨ^xLyxٶȺxӢx
4Ӗ
иռ֔(sh)'ķ֮һӖиWӋеһҪh(hun)(ji)ͨ^ģMԇĽɺZTȷʽߌ_ˮƽ
W_đB(ti)
иWӋđB(ti)ҪԲɺҕҪđB(ti)WҪ߂ׂ棺
1eO^
WҪԷeO^đB(ti)挦иԇҪ鉺^a(chn)w
2ĈԳ
иԇҪ(jng)^һrgĜʂ䣬WҪĈԳrg¹
3
иԇdzɹP(gun)IWҪгֵԼČ
Cͨ^ƌWиWӋWԸõÕrgYԴߌWЧĶF(xin)߷ֵĿˡڌʩWӋrWҪȫrO(sh)Ŀ_W(ni)ݣƌWطrg֮⣬đB(ti)ķeO^ĈԳֺҲҪֻ@܉˷yӭиԇ(zhn)
иWӋ 13
һ˽̲ĺͿԇ
ȴ_̲ĵķͿԇwʽُIиٷĽ̲ģtмxеă(ni)ͬrͨ^W(wng)j(lu)иԇP(gun)Ϣ˽ԇ}ֲֵ͕rgŵȷ
ڶƶWĿ˺͕rg
(j)ČHrͿԇҪO(sh)һČWĿ˺͕rgҪÿÿÿµČW(ni)rgԼÿAεČWĿˡ
˃(yu)ݺͲ
ͨ^ģMԇߌW^еһЩСԼă(yu)ݺͲһԔķ Zxȷ档(j)˵crᘌԵذŌWӋ
IJxmČWʽYԴ
xmς˵ČWʽYԴͨ^и俼n xҕln̵;MЌW(j)c͌HWrҵЧČWʽ
岽Գ־͏
иWycҪԳLھͲoՓ ߀ǿZҪc˽ʹČ`tҪMЄ(chung)ڿԇgmȵďԼđ(yng)ԇ
}μӏи
и ǺܶWc ҲиԇyͻƵһ֡ôβܼӏи أһЩ
1e
˫@øõ ɿҪ|N Ӱҕ(ji)ĿxȡһЩε MзeuyֱuѾ
2ע
и ԇҪ ֶ ҪⲢ cٸ(ni)ݡ ^(yng)עرO(jin) c(ni)漰}ĺͶIJ֣Ҫȫ؞ע
3 ٶȺ͜ʴ_
ƽWпͨ^eO Mоӏ ٶȺ͜ʴ_Եģ (ni)ݿһ̶ώWӛ ă(ni)ӿҵP(gun)IϢٶȺ͜ʴ_
4ע
ԇҪһЩ ɣע P(gun)I~Tļڹ(ji)ʡrgĶоMиЧ ԇ
}и
иһ헴QиwɿءڌɿͶؾCķ֔(sh)øߌиԇ俼P(gun)ҪôиһЩ
1Ϥu֘˜
ڂ俼^Ҫ˽⌑u֘˜ʣ@ӲᘌԵMЂ俼Բ鿴u֘˜ʵf\@Щ˜ʁ팦ԼČMuͬrҲԌԼϽoώн(jng)`Mu֣нO(sh)Եķ
2~RZˮƽ
иH錦ij}Ŀ^c߀Ҫʴ_ʹӢZZԱˣڌ֮ǰҪǰʂó~RZزģrչF(xin)˵Č
3俼rģMԇ};
ڂ俼^Mдģ};Y(ji)ԇߌЧʺ͜ʴ_߀ͨ^һЩ}ͬN}ӏԼϤļܺͷ
4B(yng)Լ˼Sʽ߉
иijɿҪ˼·߉ԵҪͨ^زxP(gun)֪RČWB(yng)ԼҵxĽǶc͂P(gun)עP(gun)(lin)Aüߵu
иWӋ 14
иTest of English as a Foreign LanguageQиһ헇HԘ˜ʻӢZԇVJҪZZ~Rx͌ȷ@Ã(yu)֔(sh)ȫ(ni)@ø|(zh)ČWCƌWиWӋЧ߿Ŀԇ͌WɿČ@иWӋչ_̽ӑּڞ鿼ṩɺͷԎpɵ俼͑(yng)ԇ
һƶČWӋ
nǰ_WĿdzɹԇĵһ(yng)n_ʼǰʂԼČWӋƶWӋԎŕrgͬr(yng)ԓ_ÿrgεČW}̓(ni)ݡČWյ֪RcԼӋһĿĵėlߌWЧʺ͏Ч⣬߀Խ̎ͬW֮gĜͨõⲻ֪ͬRcͻش}
Գ fxCӖ
иԇ΄(w)ǜyԇͬI(lng)ӢZ(yng)ҪڿԇǰmȵM fxCӖ иٷW(wng)վṩ' MӖϤͬ͵ }Ͳ xtҪ(j)w(ni)ݺ}ĿͬxͬxMӖӏZ~Rx}ĿMģMԇߌ_Zڽָ̎MоԺͼmZe`⣬߀ҪעؾCӏӢZ(yng)
עҪc
иԇwZx~RZȶģK(yng)ԓע⏊ͬcZ(yng)ԓϤ˜ʰl(f)Ϳ˕Ͱl(f)Ҏ(gu)txҪxɺ~Rt(yng)ԓע،Y(ji)(gu)߉W߷~RZtҪעeעⳣҊe`Ҫ֪Rc
B(yng)õČWT
иԇһҹǻLڵČWeۺ͂˲ܵĻA(ch)ϵĿԇˣ(yng)ԓB(yng)õČWTҎ(gu)ɵϢȌW˼ȷͬr߀Խ罻W(wng)j(lu)͌WYϹƽ_Ճ(yu)|(zh)WYԴµČWYϣUԼ֪R
֮õиWӋ_ԼČWĿ˲Ҏ(gu)HʩڸõӢZB(yng)߿ԇɿҪ߀LjԳֲиڇLԇ͌WԼ
иWӋP(gun)£
иWӋ11-26
иČWӋ08-07
[ͨ]иWӋ10-28
иٌWӋ11-04
иWӋ10-09
иWӋ(15ƪ)08-29
иSATԇôW10-25
2016иxW10-19
и俼Ӌ01-21