That mistake has undone all our good work.

They are charged breaking regulations and endangering the public safety.

他们被控告违章驾驶危及公众安全.

Perhaps some things are best left undone.

也许有些事情还是不要去做的好.

A man of benevolence never gets a reputation by endangering others.

《战国策?燕策》.

Nothing was left undone.

要做的都做了.

People who ignore this warning are endangering themselves and their families.

无视该警告的民众,即在陷自己和家庭于危险境地.

He left nothing undone that needed attention.

所有需要注意的事他都注意到了。

The polluted air in the city is badly endangering the health of the residents.

城里被污染的空气正严重地危及居民的健康.

I left my work undone.

工作未完成,我就放下了.

Old people often try to economize on heating, thus endangering their health.

老年人常常想方设法节约用暖气，结果损害了他们的健康。

His pack was undone.

他的背包打开了.

In my opinion, he is incompetent to practise medicine and may be endangering patients'lives.

我认为, 他不具有行医的能力,甚至可能危害病人的生命.

Lace your boots firmly or the lace will come undone.

把你的靴子系紧,不然鞋带会松开.

No fire when filling gasoline to avoid burning or endangering life.

汽油机注油时禁止烟火,否则会引起燃烧,危急生命安全.

" What's done can't be undone : why keep harping on it?

“ 早上的事已经完了,说它干 么 !

I'm afraid that she is endangering her health extending herself too much.

我担心她劳碌过度正在损害自己的健康.

He has undone the good work of his predecessor.

他已毁弃了他前任者的良好成就.

INTRODUCTIONMalignant tumors are serious diseases endangering human health.

恶性肿瘤是严重危害人类健康的疾病.

The undone tobacco was dipped into the shampoo from the volcano to and fro.

解开了的烟草被来来回回地浸到从火山来的香波里.

The polluted air in the city is badly endangering the health of the people.

城市中被污染的空气严重地危及人民的健康.

Mankind has definitely been responsible for altering the environment in ways that can never be undone.

我们的环境从未像现在这样改变过,我们一定得为此负责.