on

/ɒn/ prep. / adv.
标准词条 CET-4
一句话记住

在……上;在(某天或日期);继续;(灯、机器等)开着

释义与例句

prep. 在……上;在(某天或日期)
touching or supported by a surface, or used before days and dates to say when something happens
  1. Leave the keys on the kitchen counter.
    把钥匙放在厨房台面上。
  2. There is a small label on the back of the jacket.
    这件夹克背面有一个小标签。
展开其余 1 条例句
  1. Our next meeting is on Tuesday.
    我们的下次会议在星期二。
adv. 继续;(灯、机器等)开着
continuing an activity, or in a state in which a machine, light, or other device is operating
  1. She read on despite the noise in the corridor.
    尽管走廊里很吵,她还是继续读下去。
  2. The lights were still on at midnight.
    午夜时灯还亮着。
展开其余 1 条例句
  1. Carry on with your work while I answer the phone.
    我接电话时,你们继续工作。

词源与构词

记忆钩子 on time 是按预定时间准时;in time 是来得及,没有迟到。具体某一天用 on,如 on Sunday morning。

词族与关联词

易混词(形近或义近,注意区别)
  • in 在……里;在(某月、某年等)
    表示时间时,on 通常用于具体星期几或日期,如 on Monday、on 5 May;in 通常用于月份、年份和较长时段,如 in May、in 2026。表示位置时,on 强调在表面上,in 强调在内部或范围内。
    The conference will take place in October. 会议将在十月举行。
常见搭配
  • on time 准时
    The train departed exactly on time despite the snow. 尽管下雪,火车仍准点发车。
  • on the way 在途中;即将到来
    We stopped for some fruit on the way to the coast. 去海边的途中,我们停下来买了些水果。
  • turn on 打开(电器、灯等)
    Could you turn on the heater when you get home? 你到家时能打开暖气吗?