while

/waɪl/ conj. / n.
标准词条 CET-4
一句话记住

当……时;在……期间;而;一会儿;一段时间

释义与例句

conj. 当……时;在……期间;而
during the time that something is happening, or used to contrast two facts or situations
  1. She listened to a podcast while she was walking home.
    她步行回家时听了一期播客。
  2. While the children were asleep, their parents wrapped the presents.
    孩子们睡着时,父母把礼物包好了。
展开其余 1 条例句
  1. My brother enjoys team sports, while I prefer swimming alone.
    我哥哥喜欢团体运动,而我更喜欢独自游泳。
n. 一会儿;一段时间
a period of time, especially a fairly short one
  1. Please sit down and rest for a while.
    请坐下来休息一会儿。
  2. It took me quite a while to understand how the system worked.
    我花了相当长的时间才明白这个系统如何运作。
展开其余 1 条例句
  1. After a while, the noise from the street became less noticeable.
    过了一会儿,街上的噪声就不那么明显了。

词源与构词

记忆钩子 while 作连词强调“期间”或“对比”,作名词表示“一段时间”;once in a while 是“偶尔”,不等于 once in a moment。

词族与关联词

同义词
  • whilst 当……时;而
    while 与 whilst 作连词时意义基本相同;whilst 较正式,主要用于英式英语,美式英语中很少见。表示“一段时间”的名词只能用 while,不能用 whilst。
    Whilst the two methods are similar, their costs differ greatly. 虽然这两种方法相似,但成本差别很大。
易混词(形近或义近,注意区别)
  • when 当……时
    while 强调持续的一段时间,常接延续性动作或进行态;when 可指时间点,也可指时期,能接短暂性动作。while 还可表示两事对比“而”,when 没有这一对比用法。
    The phone rang when I opened the front door. 我打开前门时,电话响了。
常见搭配
  • for a while 一会儿;一段时间
    We chatted for a while before returning to our desks. 我们聊了一会儿,然后回到各自的书桌前。
  • after a while 过了一会儿
    After a while, the medicine began to relieve the pain. 过了一会儿,药开始缓解疼痛。
  • once in a while 偶尔;间或
    We eat at home most days, but once in a while we order a pizza. 我们大多数时候在家吃饭,但偶尔会点一个比萨。