某同学在得到刘连长的同意后，拍走了蚊子。

Liu students get a company commander's consent, shot away mosquitoes.

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当老师提问时，没有明确指定某同学回答时，凡会的同学都应当举手回答。 罠。

When na teacher asks a question and does not name a particular student to answer it, anyone who knows the answer should raise one hand.

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某王姓同学是大一新生。

Wang Zhuonan is a freshman at college.

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because they can give you a little more individual attention.

因为教授有精力关注某一位同学。

临时抱佛脚？也做过 - SpeakingMax英语口语达人