Many theories on punishment exist, all of which are variations on a theme.

He is always imagining dangers that don't exist.

他总是想着那些其实并不存在的危险.

I exist from one visit to the next.

我的生活就是一个接一个的访问。

It is possible that such cases exist.

盖有之矣.

Machines now exist to pack olives in jars.

现在可用机器将橄榄装进罐子里。

When the conditions exist , go ahead ; when they don't exist , then create them and go ahead.

有条件要上, 没有条件, 创造条件也要上.

Unless Hitler withdrew his troops from Poland by 11 o'clock that morning, a state of war would exist between Great Britain and Germany.

如果希特勒那天上午11点前不从波兰撤兵，英德两国便将处于战争状态。

Such people do not exist.

这样的人是不存的的。

It's in the underdeveloped eastern region of the country that the biggest problems exist.

最大的问题存在于这个国家贫穷落后的东部地区.

Without the greenhouse effect, life couldn't exist on earth.

少了温室效应, 地球上就不会有生命存在.

Life may exist on this planet.

这颗行星上可能存在生命.

The old man found it difficult to exist on his pension alone.

那位老人发现单靠养老金难以生活.

This is enough for life to exist on earth.

这些足够使生命生存在地球上了.

Does life exist on the moon?

月球上存在着生命吗?

Asas they exist, must exist on financial speculation.

只要金融存在, 金融投机就必然存在.

Do they exist on vegetable food?

他们靠植物性食物生存 吗 ?

They seem to exist on a different spiritual plane.

他们似乎生活在不同的精神境界.

It was impossible for them to exist on such a small income.

他们要靠这一点收入生活是不可能的.

Does life exist on other planets?

别的星球上存在生命吗?

He could barely exist on such a low wage.

拿着这样微薄的收入,他只能勉强糊口.

I have to say I didn'teven know Fox Lane Police Station existed till about four or five years ago.

我必须承认直到四五年前我才知道有福克斯巷警察局。