| 释义 |
once AS SOON ASwQntsconjunctionas soon as, or from the moment when一旦…就…Once you've been to Iceland you'll understand why I like it so much.一旦你去过冰岛，你就会懂得我为什么这么喜欢它。The journey there was terrible, but once we'd arrived we had a wonderful time.旅行的途中很糟糕，但是一到那儿我们就玩得很开心。Remember that you won't be able to cancel the contract once you've signed.记住你一旦签了字就不能取消合同。Do you want me to phone him at once (= immediately) or should I wait until later?你要我立刻打电话给他还是我该晚一些时候再打?He seemed to be perfectly all right, and then all at once (= suddenly) he started coughing violently and fell to the floor.起先他看上去很好，突然他猛烈地咳嗽起来，接着倒在了地上。(saying) 'Once bitten, twice shy' means that if something you did had a bad result in the past, you are often unwilling to take a similar risk again.一次被咬，下次胆小; 一朝被蛇咬，三年怕井绳。
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