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He's on duty twenty-four seven.是什么意思？

He's on duty twenty-four seven.

他不分昼夜地天天上班。

相关词汇
on duty seven

on

prep. （表示方向）向，（表示对象）对，（表示位置）在…上，（表示时间）在…之时；adv. （放，穿，连接）上，向前，（继续）下去；adj. 活动着的情况，状态，使用着的，发生着的，计划中的；

duty

n. 职责，责任，义务，职责或工作，税收；

seven

num. 七，七个，第七；n. 七，七个；
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
Lead the way with the police dog; he'll soon smell the fellow out.
带着警犬领路吧, 它马上会把那家伙的行踪嗅出来.
I don't want to impose on you by staying too long.
我不想打扰你,不多耽搁了.
It rains off and on.
雨忽而下,忽而停.
The decision has been accepted by everyone, so now we are all in step.
这个决定已被大家接受, 所以我们现在步调一致.
I'll never lose heart even if I should fail ten times.
即使失败10次,我也不灰心.
If you make a promise, you should keep it.
如果做出了承诺，就应该遵守。
Think over the matter and then make a decision.
这件事情斟酌斟酌再定.
I don't see any vast turnarounds in the way we do business.
我认为我们的经营方式不会有任何大的改变。
Please keep an eye on the stove in case the milk boils.
劳神照料炉上的牛奶,别沸溅了.
Keep in mind you're going to be fighting lots of men who hit plenty hard.
记住你要和许多出拳非常凶狠的人交手。
They determined to hold on to the last.
他们决定坚持到最后.
But, if output does not keep pace with demand, prices increase.
但如果生产跟不上需求, 物价就上涨.
His advice, offered to her unasked, was to stay home and make the best of things.
他主动给她提出的建议是呆在家里尽量做些事。
There will be a major incentive among TV channels to keep standards up...
将会有重大举措鼓励各电视频道维持高标准。