问题描述：
Vowels are formed mainly by the position of the tongue and, secondarily, by the shape of the lips and movement of the jaw.()
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分类：学历考试
2024-05-06 22:30:21
问题解答：
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问题描述：
Vowels are formed mainly by the position of the tongue and, secondarily, by the shape of the lips and movement of the jaw.()
问题解答：
问题反馈
