英语词汇“only if”的释义、用法及例句-英汉例句词典

词汇	only if
例句	Idiom Only if a teacher has given permission is a student allowed to leave the room. 学生只有得到老师的许可才能离开教室。 Only if the red light comes on is there any danger to employees. 只有红灯闪亮时才有危及职工的险情。
随便看	UVC uvulae uvular UX uxorial Uzbek V v vac vacancies vacancy vacant vacantly vacant possession vacate vacated vacates vacating vacation vacationed vacationer vacationing vacations vaccinate vaccinated

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