noun/verb
yawn
/jɔːn/
yawn 是什么意思
哈欠;打哈欠
an involuntary opening of the mouth with a deep breath, usually due to tiredness; to open the mouth involuntarily
词性
noun/verb
难度
进阶
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检索复习
先记这个
打哈欠
想象疲倦的人张大嘴巴打哈欠,yawn是常见的疲劳表现。