含有单元音中的前元音、中元音、后元音里每个音标各20个单词

前元音
/iː/
these\x09\x09teacher\x09\x09sleep\x09\x09receive sweet
indeed\x09\x09deepseabetween keep
green see believe eat\x09\x09tea\x09\x09
tree\x09\x09knee\x09\x09 key\x09\x09field\x09\x09peach\x09\x09
/ɪ/
big\x09\x09sit\x09\x09fifty\x09\x09busy\x09home-sick\x09
city ziplip spilt milk pit
witfish\x09baby\x09\x09pig\x09\x09study\x09\x09
hill\x09city\x09six\x09\x09happy district\x09\x09

/e/
egg\x09\x09sweater\x09\x09best\x09\x09dead red
letter steplevelwest best
health wealth whether weatherbed
pen\x09\x09desk\x09dress\x09 head\x09\x09bread\x09
/æ/
man\x09\x09stand\x09\x09flag\x09\x09blackas
fact hand fat catadvantage
apple\x09bag\x09\x09 bad\x09\x09cap\x09\x09glad\x09\x09
happyfamily sadmad back
中元音
/ɜː/
worker\x09\x09purse\x09\x09learn\x09\x09worldFrench perfume\x09perfect personal interview bird Early girl\x09\x09shirt\x09\x09nurseher\x09\x09first\x09\x09turn searchthird\x09firm

/ə/
breakfast\x09\x09happen\x09\x09moment\x09\x09festival
federalgovernment\x09 \x09officials\x09\x09member
neighbor April\x09\x09welcome\x09\x09August\x09\x09dollar\x09letter\x09\x09about famous aroundformercompany

/ʌ/
Muchtoughenoughtrustothertruck
Monthlove\x09\x09enough\x09\x09son\x09\x09mother\x09\x09country
YoungbegunnothingdoubleDutchfun\x09lunch
后元音
[ɑ:]classfastahfather bar car car, bar,far,farther, marther, class, grass, are, dark, largest, large, afternoon, after, classroom, arc, artare ah
[ɔ]clock
[ɔ:]orange tall talk daughter draw before more short
[u] bookfoot good wood cook look putpush full pull room classroom hook crook should shall wooden goose
[u:]blue rule rude mive shoe prove truth ruler truth mood soon school noodle you tooth whose who group moon
还有几个来不及了.见谅啊...要单词的解释