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【題目】我們需要它保證我們活著。

【答案】We need it to keep us alive.
【解析】我們we；需要need，它it；保證keep；我們us；活著alive，根據(jù)need to sth“需要干某事”和keep sth+形容詞“保持---怎么樣”這一結(jié)構(gòu)得知句子，所以答案是We need it to keep us alive.

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