I'm yawning, Mom. 妈,我在打呵欠。
Are you tired? Want me to open the windows? 你累了吗?要我打开窗户吗?
Your yawn made others yawn, too. 你的呵欠让其他人也跟着打起来了。
I feel like yawning after you yawned. 你打呵欠后,我也好像要打呵欠了。
Yawning is contagious. 打呵欠是会传染的。
Please try not to yawn during class. 请试着不要在课堂上打呵欠。
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