We couldn't help but doze off during his lecture.
他演讲时我们忍不住打瞌睡。
In lots of schools, if a student needs to bring a phone to school, his or her parents will have to write a statement and make sure that the phone is turned off during class.
在很多学校，如果学生需要带手机来学校，他或她的父母必须写一份声明，确保手机在课堂上是关闭的。
Twenty percent of workers doze off during night shift. People aren't machines.
百分之二十的工作者在夜班工作的时候都困，人又不是机器。
Passengers will still have to keep their phones switched off during take-off and landing.
飞机起飞和降落的时候乘客还是不能开机的。
He dozed off during the sermon.
在做礼拜时，他打瞌睡。
I always nod off during his lectures.
我总是在他演讲时睡着。
He dozed off during the long lecture.
他在听那个冗长的演讲时打起瞌睡来了。
Use a Currency field to prevent rounding off during calculations.
使用“货币”字段，可以在计算时避免发生四舍五入的情形。
Use for currency values and to prevent rounding off during calculations.
用于存储货币值，并且计算期间禁止四舍五入。
The Duke of Edinburgh once dozed off during a state banquet in Seoul in 1999.
1999年在首尔出席国宴时，爱丁堡公爵中途打起了瞌睡。
When the effects of alcohol wear off during the night, you'll probably be wide awake again.
当酒精的作用在夜间逐渐消逝时，你就会再次完全的醒来了。
With biofuels, the problems are caused by particles given off during their growth and manufacture.
而对生物燃料来说，引发问题的是种植和生产过程中散发的微粒。
American patent applications tailed off during the recession, but only after doubling in the decade before.
美国的专利申请数量虽然在衰退期间有所下降，但是在之前十年已经翻了一番。
Most families save some fireworks from the Spring Festival and set them off during the Lantern Festival.
大多数家庭会在春节省下一些烟花在元宵节燃放。
Most frequently, minds drifted off during personal grooming like taking a shower, shaving, and putting on makeup.
最频繁发生的是，思想往往在个人修饰时如淋浴、刮胡子和化妆期间游移开。
Risk increases primarily during the years of contraceptive use and tapers off during the 10 yr after stopping.
危险性增加主要是在服药期间，在停药后10年间逐渐减少。
Depending on the manufacturer's test specification, the handset may be powered on or powered off during the test.
根据厂家的测试规范，手机在测试期间可加电或不加电。
Further, each airline can adapt the system to its needs - notably by switching the system off during night flying.
此外，每家航空公司可以根据自身需要调整系统，特别是在夜间飞行时关闭该系统。
Bulgaria is still furious about having its gas supplies cut off during the Russian-Ukrainian gas row in January 2009.
2009年1月俄罗斯与乌克兰的天然气之争导致保加利亚天然气供应中断，对此保加利亚还愤愤不平。
For example my colleagues in Beijing thought I was a bit strange for wanting the office lights to be turned off during the day.
例如，我希望白天把办公室的灯关掉，而我在北京的同事们因此觉得我有点奇怪。
It's... Well, I get tired very easily recently, and I often doze off during meetings, office hours and sometimes even while I'm dining.
只是…额，我最近很容易疲劳。开会的时候，办公的时候，甚至是吃饭的时候，我经常都打瞌睡。
Is his mobile phone turned off during times you normally can reach him, or does he claim not to have had any cell service for hours at a time?
他的手机会不会在你常联系他的时候关机或者不在服务区？
Because blood pressure tends to fall off during sleep, it could be that people who slept longer had lower blood pressure over a 24-hour period.
因为在睡眠期间，血压会下降，因此那些睡眠时间较长的人在24小时内的平均血压较低。
Meanwhile, millions of Chinese factory workers who were laid off during the crisis were eventually hired back as global trade slowly normalized.
与此同时，随着国际贸易缓慢恢复，中国在危机期间失业的大量工厂工人最终又找到了工作。
Unlike most of those who sounded off during the affair, she has followed in detail the domestic Danish debate and interviewed many of the protagonists.
与在本事件中大叫大嚷的大多数人不同，她密切注意丹麦国内的争论，并采访了众多的主要参与者。
The reinforcing rails of the bottom structure in dumping station for side bottom dumping cars occasionally drop off during operation in many mines.
底侧卸式矿车卸载站在一些矿山的使用中，出现底部结构加固钢轨脱落现象。
The reinforcing rails of the bottom structure in dumping station for side bottom dumping cars occasionally drop off during operation in many mines.
底侧卸式矿车卸载站在一些矿山的使用中，出现底部结构加固钢轨脱落现象。
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