| 释义 |
when[hwen]adv. 1 [疑问副词]什么时候,何时;在何种情况(或场合)下:When did the ship leave?船什么时候开走的?I don't know when the train left.我不知道火车什么时候开走的. 2 [关系副词,引导定语从句]当…时:He came at time when we needed help.他在我们需要帮忙的时候来了. 3 在昔日(或当年)的困难时候;昔日
conj. 1 当…时:It was snowing when he arrived at the construction site.他到达工地时,正在下雪.He was fond of swimming when (he was) yet a child.他还是一个孩子的时候,就喜欢游泳. 2 一…(就…);每当:We'll start when the monitor comes.班长一来,我们就出发. 3 如果: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. 4 虽然;(然)而;可是:He usually walks when he might ride.虽然有车可坐,他通常总是步行. 5 既然;考虑到:Why use metal when you can use plastic?既然能用塑料,为什么要用金属呢?How could you,when you knew that this might damage the apparatus?既然你知道这样会损坏仪器,你怎么能这样做呢? 6 其时;然后:I stayed till noon,when I went home.我呆到中午,然后就回家了.
pron. 1 [疑问代词]什么时候:Till when can you stay?你能呆到什么时候?From when?从什么时候起? 2 [关系代词]那时:We came back on Tuesday;since when we have been working in the repair shop.我们星期二回来,从那时起就一直在修配间工作.
n.(事件发生的)时间:Tell me the when and (the) how of it.请把这事的时间和原委告诉我.the when and (the) where of the traffic accident交通事故发生的时间和地点 |