因?yàn)楹竺娴膖o doing the experiment
是前面steps的定語(yǔ)
并且此地to是介詞,不是動(dòng)詞不定式,所以用to doing.
類(lèi)似的還有,the key to the door,the answer to the question,to都是介詞.
there are only a few steps to doing the experiment 為什么不用to do,而用 to doing
there are only a few steps to doing the experiment 為什么不用to do,而用 to doing
英語(yǔ)人氣：142 ℃時(shí)間：2020-03-29 17:28:22
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