在英语过去进行时中,"as"用于连接同时发生的两个动作。例如,"我在做晚饭,当时我丈夫在看电视","她在备考考试,当时她的朋友们在玩游戏"等。"as"通常出现在第二个动作前,表示第二个动作发生时,第一个动作正在进行。
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I was cooking dinner as my husband was watching TV. 我在做晚饭,当时我丈夫在看电视。
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She was studying for her exam as her friends were playing games. 她在备考考试,当时她的朋友们在玩游戏。
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They were walking along the beach as the sun was setting. 当太阳下山的时候,他们在海滩上散步。
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He was driving to work as the rain was pouring down. 雨下得很大的时候,他在开车去上班。