熬夜复习实际上是自拆台脚,因为缺乏睡眠会降低学习效率。

Pulling all-nighters is self-defeating since lack of sleep reduces study efficiency.

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Pulling all-nighters is self-defeating since lack of sleep reduces study efficiency.

self-defeating 是由 self(自己)和 defeating(击败、破坏)组成的复合形容词。self 表示"自身的",defeating 来自动词 defeat(击败、使失败),加上 -ing 变成现在分词形式作形容词用。self-defeating 的字面意思是"自我击败的",引申为"适得其反的"或"自拆台脚的",指某种行为虽然本意是好的,但实际效果却对自己不利。

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