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to be doing用法

时间:2024-10-12 11:59:39

1、To be doing" 是一种常见的结构,意思是正在做某事。它是 "be" 的原形动词(如 "am," "is," "are")加上 "doing" 的现在分词形式。例句:I'm studying for a test right now. (我正在复习考试)They are having a barbecue in the backyard. (他们正在后院烧烤)

2、注意,"to be doing" 可以用来表示一段时间内的持续性动作。例句:I've been working on this project for weeks. (我已经做这个项目几周了)She's been practicing the piano for hours. (她已经弹钢琴几个小时了)中文翻译:正在做某事。

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