Robert was always the class clown.

That clown is full of amusing tricks.

这个丑角噱头真多。

The clown gave a very funny performance.

丑角的表演非常滑稽。

Engineers noticed that the pipes were not expanding as expected

工程师注意到管道并没有如预期那样膨胀。

The two companies forged ahead, innovating and expanding.

两家公司加快发展，改革创新，不断扩张。

The growth has come by expanding the definition of a smartphone and cutting prices, analysts said.

分析师认为，这一增长是通过扩大智能手机定义和降低价格得来的。

I must fly or I'll miss my plane

我必须赶快走了否则就会误机。

A fly landed on his nose.

一只苍蝇落在他的鼻子上。

As a child he had thought he could fly, if he willed it enough.

他小时候曾经以为，只要有足够决心，想要飞就能飞起来。

Doesn't time fly?

时间过得真快！

"It must have flown into the window," Tony said when his sister Betty called him to have a look.

“一定是飞进了窗户，”托尼说。这时他的姐姐贝蒂叫他去看看。

Don't go to bed too early Your body usually lets you sleep only the number of hours it needs.

别太早睡觉。你的身体通常只需睡上它所需要的时间。

A treadmill is an exercise machine that lets you walk in one place.

跑步机是一种可以让你在原地进行行走的锻炼机器。

A "standing desk" lets people stand while they work.

“站立式办公桌”可以让人们站着工作。

What you need is a great teacher who lets you make mistakes ．

你需要的是一个允许你犯错的好老师。

If Apple is forced to write code that lets the F.B.I. get into the Phone 5c used by Syed Rizwan Farook, the male attacker in the San Bernardino attack, who would be responsible if some hacker got hold of that code and broke into its other devices?

如果苹果公司被迫编写代码让联邦调查局进入圣贝纳迪诺袭击者赛义德·里兹万·法鲁克用过的iPhone5c的话，如果某个黑客获取了这些代码、用来入侵其他设备，那谁来负责呢?

This darkroom lets in light.

这间暗室有点儿透亮儿。

Lets speak less and listen more.

咱们少讲多听吧。

He never lets anything come between him and his smoking.

任何事情都不能使他不抽烟。

Heaven is not cooperative.; The weather isn't cooperating.; Unfortunately, the weather lets us down.

天公不作美。

She lets her children play in the garden.

她让孩子们在花园里玩耍。