【摘 要】
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while和when用法全解析： while和when都是表示“同时”，到底句子中是用when还是while主要看从句和主句中所使用的动词是短暂性动作（瞬时动词）还是持续性动作。 1. 若主句表示的是一個短暂性的动作，而从句表示的是一个持续性动作时，两者都可用。 He fell asleep when / while he was reading. 他看书时睡着了。 I met him w
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while和when用法全解析： while和when都是表示“同时”，到底句子中是用when还是while主要看从句和主句中所使用的动词是短暂性动作（瞬时动词）还是持续性动作。 1. 若主句表示的是一個短暂性的动作，而从句表示的是一个持续性动作时，两者都可用。 He fell asleep when / while he was reading. 他看书时睡着了。 I met him w
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