drop off

英 [ˈdrɒp ɒf]

美 [ˈdrɑːp ɔːf]

中途放下（某人）; 中途卸下（某物）; 打瞌睡; 睡着; 减退; 减少

机械

牛津词典

• 以上各短语均含开始睡着之义。
  These words all mean to start to sleep.
• 指入睡，有时指无意之中或在不适当的场合睡着：
  to start to sleep, sometimes when you do not intend to or in a situation that is not appropriate
  1. When she finally fell asleep, she began to dream.
     她终于睡着了，并开始做梦。
  2. I pinched myself to stop myself from falling asleep.
     我掐自己以防自己睡着。
• 指入睡，尤指有意想睡着：
  to start to sleep, especially when you intend to
  1. I shut my eyes and tried to go to sleep.
     我闭上了眼睛想睡。
  2. He woke for a moment and then went to sleep again.
     他醒了一会儿，然后又睡了。
• 指开始入睡，尤指经过很长时间或很难才睡着：
  to start sleeping, especially after a long time or when this is difficult
  1. He took a long time getting to sleep that night.
     他那天晚上过了好长时间才睡着。
• 指睡着，尤指渐渐地入睡：
  to fall asleep, especially gradually
  1. I must have drifted off, because when I woke we were nearly home.
     我一定是睡着了，因为我醒来时我们已快到家了。
• 指睡着了一会儿，尤指坐着或在不该睡觉时打瞌睡：
  ( informal ) to fall asleep for a short time, especially when you are sitting down and when you are not supposed to be sleeping
  1. I was practically nodding off in that meeting.
     我在那次会议上差点睡着了。
• 指打盹儿、小睡：
  ( BrE informal ) to start sleeping lightly
  1. I dropped off and missed the end of the film.
     我打了个盹儿，错过了影片的结尾。

柯林斯词典

• → see:drop 9
• PHRASAL VERB 打瞌睡;睡着
  If youdrop offto sleep, you go to sleep.
  1. I must have dropped off to sleep...
     我肯定是睡着了。
  2. Just as I was dropping off, a strange thought crossed my mind.
     就在我打瞌睡的时候,一个奇怪的念头闪过我的脑海。
• PHRASAL VERB 减退;减少
  If the level of somethingdrops off, it becomes less.
  1. Sales to the British forces are expected to drop off...
     预计对英国军队的销售量会减少。
  2. The daily toll of casualties has dropped off sharply.
     每日伤亡人数已经大大减少。

英英释义

verb

• change from a waking to a sleeping state
  1. he always falls asleep during lectures
  Synonym:fall asleepdope offflake outdrift offnod offdoze offdrowse off
• fall or diminish
  1. The number of students in this course dropped off after the first test
• get worse
  1. My grades are slipping
  Synonym:slipdrop awayfall away
• retreat
  Synonym:fall backlosefall behindrecede
• leave or unload
  1. unload the cargo
  2. drop off the passengers at the hotel
  Synonym:dropset downput downunloaddischarge

双语例句

• Where can I drop off this package?
  我应该把这个包裹放哪里？
• France's high labor costs seem to be behind the drop off in exports.
  法国的劳动力成本高，似乎是出口下降背后的原因。
• Or you can come in tomorrow and drop off your badge.
  否则明天你可以来把你的徽章卸掉了。
• Is this a big drop off point?
  从车上落下那么个大家伙？
• Every few hours, however, he would grow tired and drop off to sleep.
  每隔几个小时，他也会累，于是就睡着了。
• The daily toll of casualties has dropped off sharply.
  每日伤亡人数已经大大减少。
• You just popped in unexpectedly to drop off an expensive gift?
  你突然冲进来就是要放下这昂贵的礼物的？
• I went by your professor's office to drop off the paper.
  我经过你的教授的办公室，把你的论文放在那了。
• I'll be sure to drop off your stuff.
  我一定会把你的东西还给你的。
• Our sales of ice-cream start to drop off at the beginning of September.
  九月初我们的冰淇淋销售量开始减少。