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英语
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IT took me only a few seconds to send all the e-mails.(保持原句意思）
I ______ only a few seconds _______ all the e-mails.
第二个空格填send 为何错?为啥要用on?
人气：241 ℃ 时间：2020-01-29 23:55:02
解答
因为 spend···on ······
或者是spend······（in）doing
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