They both smiled; neither seemed likely to be aware of my absence for long.

他们两个人都笑了，看来都没意识到我离开了很长时间。

His inability to stay at one job for long had finally proved too much for her.

他干什么工作都不能长久，终于让她无法忍受。

We should not put stamps in the light for long.

我们不应该把邮票在光线下放置太长时间。

You will work under much pressure, for long hours and in hot weather.

你会有很大的工作压力，因为你在炎热的天气中长时间工作。

The things that money can buy can not bring happiness to a person for long.

金钱能买到的东西不能长久地给人带来快乐。

He never stays angry for long.

他生气时间从来不会长。

Will you be away for long?

你要离开很久吗？

"Did you live there?"—"Not for long."

“你以前住在那里吗？”—“没住多久。”

He's given to going for long walks on his own.

他有独自长距离散步的习惯。

Trains are reliable, cheap and best for long-distance travel.

乘火车可靠、便宜，最适合长途旅行。

It is difficult to make oneself concentrate for long periods.

让自己长时间聚精会神是很困难的。

Eisenhower was intensely aware of the need for long-range planning.

艾森豪威尔强烈地意识到长期规划的必要。

Many people have begun looking for long-term ways to rein in spending.

很多人已经开始寻找控制开支的长远方式。

Horses used for long-distance riding tend to wear their shoes out more quickly.

用来作长途跋涉的马匹会很快就磨破铁掌。

Too many people had too little patience for the grunt work necessary for long-term success.

太多的人都没有耐性为以后的成功去做眼下必需的苦差事。

I haven't seen such a novel for long.

我很久没有看过这样的小说了。

This question has been in my head for long.

这个问题在我已经想了很久了。

These 24 people are strangers now, but not for long.

这24人目前都是陌生人，不过很快就不是了。

They can not live for long periods in cold weather.

它们不能在寒冷的天气中长时间生存。

That makes electric cars not so useful for long journeys.

这使得电动汽车在长途旅行中不那么有用。

Being lonely for long periods of time is not a great feeling.

长时间的孤独并不是一种好感觉。

"And this," says Dr.Williams, "is good news for long-term space travel."

威廉姆斯博士说：“对于长期太空旅行来说，这是好消息。”

You don't have to run fast or for long to see the benefit.

你不需要跑得多快、多久，就能看到好处。

Keeping your head bent down for long is not good for your neck.

长时间低着头对脖子不好。

The decision wasn't made by accident and I'd thought about it for long.

做此决定并非偶然，对此我已思虑多时。

Filled with word games, this is a book that won't stay secret for long.

这本书里全是文字游戏，秘密很快就守不住了。

Nothing stays the same for long.

任何事情都不会长期保持不变。

It is not easy to stay fresh for long.

要长时间保鲜不容易。

It was difficult to keep a job for long.

很难从事一份工作很长时间。

For long there was no answer, then again the knock.

很长时间没有回答，然后又是敲门声。