We must maintain keen vigilance at all time.
任何时候我们都要保持高度警惕。
It is very different from SOAP and POX, for instance, there is no XML message coming in at all time.
它与SOAP和POX非常不同，例如，并不总是有XML消息进来。
This looks like an absurd story; while in the world around us, similar stories happen at all time.
这是一个看似荒诞的故事，但在我们身边的世界，每时每刻都在发生着类似的故事。
Use a dictionary and grammar guide constantly. Keep a small English dictionary with you at all time.
经常使用字典和语法指南。
With foreign currency reserves dwindling and the rupee trading at all time lows against the dollar, Pakistan is in danger of defaulting on its debt.
由于外汇储备下降，以及卢比对美元的汇率降到历史最低点，巴基斯坦面临无法偿付国际债务的风险。
About cross-domain limitation, the cross Document Messaging API is interesting to allow cross-origin communication but the developer as to be very careful using it and ensure security at all time.
至于跨域的限制，跨文档进行消息传输的API非常有趣的允许跨源(cross -origin)通信，但是开发者需要非常小心的使用它，在任何时候确保安全性。
A few kind words at the right time make all the difference.
在适当的时候说几句体贴话效果迥然不同。
There's things going on at a circus all the time.
马戏团里总是有事情发生。
The lemmings leave their nests all together at the same time, forming huge crowds.
旅鼠在同一时间倾巢而出，形成了庞大的鼠群。
One in four Los Angeles teachers reported there was no time at all for "free play."
四分之一的洛杉矶教师称根本没有时间“自由玩耍”。
Not all large mammals died out at that time.
并不是所有的大型哺乳动物都在那个时期灭绝了。
He spends all his free time at home vegetating in front of the TV.
他把所有的空闲时间都用来窝在家里看电视。
At one time, walking across the room took all her strength.
曾经有段时间，穿过这个房间得用尽她全部的力气。
They all left at roughly the same time.
他们都是大约同一时间离开的。
Hey, look at the time! We'll talk about it tonight. All right?
嘿，看看时间吧！我们今晚再谈论这个，好吗？
"We're all talking at the same time."—"Yeah. Sorry."
“我们都在同时说话。”—“呃，对不起。”
It seemed like a good idea at the time , and then it all went horribly wrong.
那在当时似乎是个好主意，但后来却铸成大错。
We've all been guilty of selfishness at some time in our lives.
我们每个人一生中都有过自私自利的过失。
What looks obvious in hindsight was not at all obvious at the time.
事后一目了然的在当时根本看不清。
The president's popularity nationally is at an all-time low.
总统在全国的声望处于历史最低点。
As time passed, she saw less and less of all her old friends at home.
随着时间的消逝，她越来越见不到家乡那些老朋友了。
The teams were all square at half-time.
两队上半场打成平局。
The score at half-time was two all.
上半场比分为二平。
It would have been better to have thinned the trees over several winters rather than all at one time.
当初要是分几个冬天来疏剪树木，会比一次性疏剪要更好些。
About one-third of all people cohabit at some time in their lives.
大约有三分之一的人曾与人同居。
For a time it seemed doubtful that he would move at all.
短期内他似乎不大可能搬走。
All of them had run afoul of the law at some time or other.
他们都曾经犯过法。
She couldn't know what time he'd go, or even for certain that he'd go at all.
她不知道他何时要走，甚至于还不能确定他究竟要不要走。
他根本没有空闲时间。
Grief is something that, unfortunately, we must all experience at some time or other.
遗憾的是，悲痛这种情感，是我们迟早都必须在一段时间内去经受的。
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