go off有哪些意思?记得老师说有三种. 英语
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【答案】 你老师说的不错,正式的意思是有3个,但还有一个非正式的用法,所以一共是4个意思：
① To undergo detonation; explode. 爆炸. 例句： A bomb went off at midnight.
② To make a noise; sound. 发出噪音或声音.The siren went off at noon.
③ To leave.离开. Don't go off mad.
④ (informal )To adhere to the expected course of events or the expected plan. 按预期或计划,执行的很顺利.The project went off smoothly.