precondition的英语例句
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They made multi-party democracy a precondition for giving aid.
他们把实施多党民主作为给予援助的前提。
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A ceasefire is an essential precondition for negotiation.
停火是谈判的必要前提。
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Celanese makes safety a precondition for everything we do.
塞拉尼斯做任何事都以安全为前提.
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