precondition
英 美
A ceasefire is an essential precondition for negotiation.
停火是谈判的必要前提。
They have demanded the release of three prisoners as a precondition for any negotiation.
他们要求释放3名囚犯作为谈判的先决条件。
A ceasefire is a precondition for talks.
停火是和谈的先决条件。
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