作业帮He spend an hour working out the math problem.的意思和同义句
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He spend an hour working out the math problem.的意思和同义句
他花了一个小时来解答这道数学题 再答： An hour has been spent on the math problem by him.
再问： 用It开头，中间为an hour，最后是out the。。。 这个是过去式，不好意思 spent
再答： It took him an hour to work out the math problem.
再答： ^_^
再问： 这个应该怎么理解呢？
再答： 额
再答： 就是这样啊
再答： ^_^
再问： 用It开头，中间为an hour，最后是out the。。。 这个是过去式，不好意思 spent
再答： It took him an hour to work out the math problem.
再答： ^_^
再问： 这个应该怎么理解呢？
再答： 额
再答： 就是这样啊
再答： ^_^
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