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there are only a few steps to doing the experiment 为什么不用to do,而用 to doing

发布网友 发布时间:2022-05-13 22:08

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热心网友 时间:2023-11-01 07:34

因为后面的to
doing
the
experiment
是前面steps的定语
并且此地to是介词,不是动词不定式,所以用to
doing。
类似的还有,the
key
to
the
door,the
answer
to
the
question,
to都是介词。
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