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双元音 [shuāng yuán yīn]
diphthong
- 双元音是元音的组合。
Diphthongs are complex ions of vowels. - 有一次，张老师纠正我的发音，说我这个东北人，双元音口形总是张不开，一再娇正也发不好。
One day in the class I could not pronounce a diphthong - not opening my mouth wide enough - since I was from the Northeast, no matter how many times Teacher Zhang corrected me. - 通过让学生朗读以下单词及词组，让他们复习单元音的发音，以便引入双元音。（见课件单词及词组练习）
Ask students to read the following words and phrases in falling tone and rising tone, pay attention to the words containing simple vowels.
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中国词汇量第二的英语词典
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