英语词汇“only if”的读音、翻译、释义、用法及例句-学习网

主要翻译
英语		中文
only if conjconjunction: Connects words, clauses, and sentences--for example, "and," "but," "because," "in order that."	(not unless)	只有…才… zhī yǒu cái
	I'll go, but only if you go with me.

复合形式：
英语		中文
if and only if conjconjunction: Connects words, clauses, and sentences--for example, "and," "but," "because," "in order that."	(on the strict condition that) (强调用语)	在…情况下而且只有在此种情况下 zài … qíng kuàng xià ér qiě zhǐ yǒu zài cǐ zhǒng qíng kuàng xià
	I'll help you, if and only if, you promise to do your part.