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英语
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had to be built为啥加had?
site had to be found for it and
pedestal had to be built.
had是做什么的?是had还是had to
人气：368 ℃ 时间：2020-08-19 22:34:18
解答
had to,have to的过去时,意为“必须做”
have to build 必须建
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