20个元音是什么?

元音：发音时声带振动，呼出的气流通过口腔时不受阻碍，这样形成的语音称作元音。元音发音响亮，口腔中气流不受阻碍，是构成音节的主要音。英语中有20个元音。
. 元音：

1) [I:] sea, he, see, piece, ceiling

2) [I] sit, build, miss, myth

3) [e] bed, desk, head,

4) [A] bad, land, bank, stamp

5) [B:] car, fast, class, plant, calm, aunt

6) [C] hot, want

7) [C:] door, more, sport, ball, warm, author, court, bought, caught

8) [U:] good, who, blue, soup,

9) [U] look, put, women, could

10) [Q] cup, come, blood, rough

11) [[:] girl, work, serve, nurse

12) [[] cadre, ago, forget, polite, dollar, doctor, famous, Saturday

13) [ei] cake, they, play, eight, great,

14) [ai] bike, die, neither, light, try, find, height, eye

15) [Ci] boy, oil

16) [[U] phone, cold, boat, soul, grow

17) [aU] house, town

18) [i[] dear, idea, deer, here, fierce,

19) [Z[] pear,