| 词汇 | when |
| 释义 | whenwhen[(h)wen]adv.1.■[疑问副词]什么时候, 何时2.■[关系副词]当...时When will he come?他什么时候来?It was a time when motorcars were rare.那是汽车很罕见的时代。I still remember the night when Nanjing was liberated.我还记得南京解放那天晚上的情景。 词性变化when[(h)wen]conj.1.■当...时2.■一... 就...3.■如果4.■虽然; 然而; 可是5.■既然6.■考虑到; 那时; 然后It was raining when we started.我们动身时正下着雨。We'll start when the team leader comes.队长一来, 我们就出发。Turn off the switch when anything goes wrong with the machine.如果机器发生故障, 就把电门关上。We have only three books when we need five.虽然我们需要五本书, 却只有三本。Why use wood when you can use plastic?既然能用塑料, 为什么还要用木料?We played outside till sunset, when it began to rain.我们在户外一直玩到太阳下山, 那时天下起雨来了。when[(h)wen]pron.1.■[疑问代词]什么时候2.■[关系代词]那时Since when have you been here?你从何时起就在这个地方的?We came a week ago, since when the weather has been bad.我们一星期前来到这里, 从那时起天气一直不好。when[(h)wen]n.1.■(事件发生的)时间 the when and where of an act 行为发生的时间和地点Tell me the when and the why (=reason) of it.请告诉我时间和原因。 继承用法whenissuedadj.1.■(股票, 证券)虚股的whennessn.1.■时间性[关系] |
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