The train is running at a speed of 70 miles an hour.

Light travels at a speed of 300,000 km per second.

光以每秒30万千米的速度传播.

Raindrops fall at a speed of about 500 to 1,000 feet a minute.

雨点以每分钟大约五百到一千英尺的速度下降.

It is measured at a speed of 2 m / s under load intensity of 1.96 Mpa.

它是在载荷集度为1.96Mpa和速度为2m/s时测得的.

The filaments are expanding into space at a speed of roughly 5,000 kilometers per second.

这些纤维状星云物质以每秒大约5000公里的速度向宇宙空间扩展.

They streaked down through the lunar shy at a speed of 3,700 miles an hour.

他们以一小时三千七百英里的速度向下掠过月球天空.

The car went at a speed of 100 kilometers an hour.

那辆车子是以每小时100公里的速度开过去了.

The car runs at a speed of sixty miles an hour.

那辆汽车以每小时六十英里的速度行驶.

The train is travelling at a speed of sixty miles an hour.

火车正以每小时六十英里的速度行驶.

The plane is flying at a speed of 200 miles an hour.

飞机正以每小时二百英里的速度飞行.

A Boeing 747 jumbo jet airliner lands at a speed of 160 m / s.

一架波音747巨型喷气式班机以160米/秒的速度着陆.

He drove at a speed of sixty miles per hour.

他以每小时60英里的速度开车.

To talk for hours at a stretch is more exhausting than you seem to think.

你一连讲几个小时的话可比你似乎想象的要累.

After travelling for three days I slept for twenty hours at a stretch.

连续3天旅行之后,我一连睡了20个小时.

They worked two shifts at a stretch.

他们一口气干了两班.

He hewed down three trees at a stretch.

他一口气砍倒了三棵树.

Can you work eight hours at a stretch?

你能连续工作八小时 吗 ?

At a stretch learned aa few chapter today, great.

今天一口气学了好几章, 爽.

He kept to the tasks for five days at a stretch.

这工作他一连干了5天.

You are so great to tell those numbers at a stretch.

你一口气就能把那些数字说出来,真了不起.

They had to stand for hours at a stretch.

他们不得不连续站立几个钟点.