The prompt action of the policemen saved the people in the house from being burned.

Prompt action is indicated in a crisis.

危急时必需要迅速行动.

We must act with dispatch.

我们必须迅速行动.

But their ability to act quickly is limited.

但他们迅速行动的能力有限.

We must act . We must act quickly.

我们必须行动起来,迅速行动起来.

Many organisations act fast, working their way to help those in need.

同时,这些志愿机构也迅速行动, 以他们的方法向灾民提供支援.

If you decide to go of, swift action, we can act quickly.

如果决定走集团化的道路,那就要迅速行动, 抢占先机.

You had better stir yourself.

你最好迅速行动起来.

Is there Sudden Change in the Elastic Force of Spring?

弹簧的弹力会发生突变 吗 ?

If so, how noticeable will the effect be on the game?

如果有,那在游戏中会是怎样的显而易见的效果, 举个例子,球的反弹力会变小 吗 ?

The ball has lost its bounce.

这球已失去弹力.

The latter can form a coating that is resilient.

后一种可形成一种有回弹力的涂层.

It works by means of a spring.

它是用发条带动的.

It's a one-day clock; the spring winds down in 24 hours.

这是一天上一次弦的钟; 发条走24小时就松掉了.

The clock will stop if you don't wind it.

你如果不给钟上发条,钟会停的.

She broke her watch by winding it too tightly.

因发条上得太紧而把表损坏了.

Tom wound his clock before he went to bed.

汤姆睡觉之前给钟上发条.

It was the perfect setting — a beautiful log house on forty acres of land.

安居在40英亩土地上一座漂亮的木屋里,环境美极了.

And one of the men left the log-house, and presently returned with a lighted brand.

有个人从木屋走了出去, 不一会儿又举着火把转了回来.

The log-house was full of smoke, to which we owed our comparative safety.

木屋里到处是硝烟, 可也多亏了这硝烟,我们的情况才不至于太糟.

She raked through her belongings for the lost watch.

他翻遍了自己的东西找寻失掉的表.