o off
离开,离去：
He went off in a great hurry.
他匆匆地离开.
(演员)退场,下场：
Hamlet goes off.
哈姆雷特下场了.
(疼痛)消失；(药物)失效；死亡：
I've got rather a headache,but it will probably go off when I've had a rest.
我头痛得很,但休息一会儿后,头痛可能会消失.
(水电等)被切断；(煤气等)用完：
The power went off during the high wind.
起大风时,电被切断.
爆炸；(枪炮等)被发射；突然发出响声：
He fired but his pistol failed to go off.
他扳动了扳机,但手枪没有发射.
发生(情况)；进行,举行：
Everything went off according to plan.
所有事情在按照计划进行.
(质量)变差；(食物等)变质：
His work has gone off recently.
他的工作最近不如以前.
Don't eat that pork,it's going off.
不要吃那猪肉,它变质了.
睡着；陷入(昏迷状态)：
The child soon went off into a deep sleep.
小孩很快熟睡了.
The old man went into the faint.
老头昏了过去.
(商品)卖掉,售出：
The goods went off rapidly.
这些货物被很快卖掉了.
停止使用：
America went off the gold standard after the Great Depression.
大萧条后,美国停止使用金本位制.
对…不再有兴趣：
The children seem to have gone off cornflakes for breakfast.
孩子们似乎对玉米片做早餐不感兴趣了.
(机车)脱离轨道：
The train went off the rails and fell into the valley.
火车出轨翻入了山谷.
携…潜逃；与…私奔(常与 with 连用)：
He has gone off with his best friend's wife.
他与他最要好朋友的妻子私奔了.
发出特种声音：
My alarm went off at 6 A.M.
我的闹钟在早晨六点闹.
以上来源于：《21世纪大英汉词典》
【俊狼猎英】 欢迎追问
再问： 有灯灭了的意思吗
再答： 有(水电等)被切断；(煤气等)用完： 可以指灯灭了 去年一个中考题就是这个 忘记是哪题了不过
