两个同时发生的过去动作，只能用while引导吗？

while和when的区别是什么?请

while 来自古英语 hwil [waIl; (?@) hwaIl] n 一会儿 a long while 好长一会儿 A short while ago, however, he became a busdriver and he has not regretted it。 可是,不久前他当了一名公共汽车驾驶员,而且他不后悔。 once in a while 有时；偶而 worth one's while 值得；有价值 while conj …的时候 While in Vienna he studied music。 他在维也纳时学习音乐。 While he was eatin...全部

  while 来自古英语 hwil [waIl; (?@) hwaIl] n 一会儿 a long while 好长一会儿 A short while ago, however, he became a busdriver and he has not regretted it。
   可是,不久前他当了一名公共汽车驾驶员,而且他不后悔。 once in a while 有时；偶而 worth one's while 值得；有价值 while conj …的时候 While in Vienna he studied music。
   他在维也纳时学习音乐。 While he was eating, I asked him to lend me $2。 当他正在吃饭时,我请他借给我二英镑。 While two detectives were keeping guard at the door, two others opened the parcel。
   这时两个侦探把着门,另外两个打开包裹。 While I read, she sang。 我看书时，她在唱歌。 I met her while I was at school。 当我在学校的时候我遇见了她。
   虽然；但是 While I understand what you say, I can't agree with you。 虽然我理解你的意思，但我还是不同意。 You like tennis, while I'd rather read。
   你爱打网球，但我爱看书。 (= whilst) while vt whiled, whiling （与away连用） 消磨；度过 They while away many afternoons on the beach。
   他们在海滩消磨了许多个下午。 while adv （前面与表示时间的词连用）在…时候 the summer while I was abroad 我出国的那个夏天 while [(h)wail] n。
   时间; 一段时间, 一会儿 Wait a while。 等一会儿。 It took a long while to do the work。 做这个工作花了许多时间。 What have you been doing all this while? 这一阵子你一直在做什么? while [(h)wail] conj。
   当。。。的时候, 和。。。同时; 只要 但是, 然而 虽然; 尽管 half-turn while in hanging 悬垂转体180° Write while I dictate。
   当我口述时请你记下。 Some people like coffee, while others like te adj。 有些人喜欢咖啡, 而有些人喜欢茶。 While he loves his students, he is very strict with them。
   虽然他爱他的学生, 可是他对他们很严格。 prep。 [古]到。。。时候止, 直到。。。 vt。 消磨, 闲混(时间)(away) a good [long, great] while 长[许]久 a little while 不久, 一会儿 a while ago 方才, 刚才 after a while 不久, 过一会儿 all the while 始终, 一直 at whiles 有时, 时常 between whiles 间或, 时或 every little while (=at whiles) 有时, 时常 for a [one] while 暂时 in a little while 不久, 没一会儿 make it worth sb。
  's while 酬谢某人, 贿赂某人 the while [whilst] (与此)同时, 在此期间 while you are about it [口]顺便, 在你做这个的同时 worth (one's) while 值得的; 值得花费时间, 值得一干; 有益的 while [ (h)wail ] n。
  一会儿, 时间 conj。当。。。的时候, 虽然 vt。消磨 prep。直到when [wen; (?@) hwen] adv 什么时候 When can you come? 你什么时候能来？ 当…的时候 at the time when we met 在我们见面的时候 I lived in this village when I was a boy。
   当我还是个孩子的时候我住在这个村庄里。 when conj …的时候 Edison was not a good student when he was a young boy。
   爱迪生小时候不是一个成绩好的学生。 When the plane arrived, some of the detectives were waiting inside the main building while others were waiting on the airfield。
   当飞机抵达时,一部分侦探等在主楼里面,而另一部分则等在停机坪上。 When I came home my wife was cooking dinner。 我回家时，妻子在做晚饭。 如果；要是；既然 I can't tell you when you won't listen。
   既然你不想听，我就不告诉你了。 其实 He stopped trying, when he might have succeeded next time。 他不再试了，其实他可能下一次就成功。
   hardly when 刚…就 Hardly had I opened the door when he told me。 我刚开开门，他就告诉了我。 (= scarcely when) when pron 什么时候 When else shall we meet again, if August 1st is not convenient for you? 要是八月一日对你不方便,那么另外什么时候再碰头呢? He then asked when Mr Gilbert would be allowed to go home。
   然后他又问,什么时候可以允许吉尔伯特先生回家。 Since when have he had a car? 他从什么时候起开始有了一辆汽车？ 那时 She wrote a month ago， since when we've heard nothing。
   一个月前她来过信，从那时起我们就没听到过她的消息。 The Ambassador's wife went on asking questions, when she suddenly noticed a big hole in her husband's hat。
   大使的妻子继续问了好多问题,突然她发现丈夫帽子上有个洞。 when,as,while这三个词都可以引出时间状语从句，它们的差别是：when 从句表示某时刻或一段时间 as 从句表示进展过程，while 只表示一段时间 When he left the house, I was sitting in the garden。
   当他离开家时，我正在院子里坐着。 When he arrived home, it was just nine o'clock。 当他到家时，正是九点钟。 As he grew older, he became more intelligent。
   随着他年龄的增长，他变得更有才智了。 While he was in London,he studied music。 当他在伦敦时，他学习音乐。 While she was typing the letter,the telephone rang。
   当她在用打字机打那封信时，电话响了。 when [(h)wen] adv。 [疑问副词]什么时候, 何时 [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。 when [(h)wen] conj。
   当。。。时 一。。。 就。。。 如果 虽然; 然而; 可是 既然 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。 [疑问代词]什么时候 [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。 (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。 whenissued adj。 (股票, 证券)虚股的 whenness n。 时间性[关系] when [ (h)wen ] conj。就在那个时候, 在。
  。。的时候 adv。什么时候, 。。。的时候 pron。什么时侯, 那时。收起