Extensive research has been done into this disease.

对这种疾病已进行了广泛研究。

A great deal has been done internally to remedy the situation.

内部已经采取了很多措施来挽救局面。

I find it ludicrous that nothing has been done to protect passengers from fire.

我认为没有采取任何措施来保护乘客免受火患是荒唐的。

It's useless to regret what has been done.

对已经做过的事后悔是没有用的。

It has been done by a scientific experiment.

这是科学实验的的结果。

Thatch which has been done the British way lasts from twenty to sixty years, and is effective defiance against the heat.

按照英国方式建造的茅草屋，可以使用20到60年，能有效地抵御炎热。

In the competitive game of biomedical science, research has been done on scientists who narrowly lost or won grant money.

在生物医学科学的竞争中，一些以微弱劣差距掉或赢得了资助的科学家完成了研究。

Thatch which has been done the British way lasts from twenty to sixty years, and is an effective defiance against the heat.

茅草屋按照英国的方式建造，可以使用20到60年，有效地抵御炎热。

But it has been done before.

不过，此前已有人这样做了。

The research has been done.

调查工作已经完成了。

None of this has been done.

而这几件事没有一件完成。

A lot of hurt has been done there.

发生过那么多伤人的事情。

JUSTICE has been done.

正义已经得到伸张。

But little has been done.

但已经实施的却极少。

Much damage, however, has been done.

然而大量破坏已经产生。

Dinner has been done for half an hour.

饭菜已经做好半个钟头了。

It has been done before.

这一招前人已经用过。

Understand the hurt that has been done.

要明白伤害已经发生了。

What has been done?

过去做过什么努力？

But critics said the damage has been done.

但批评者们认为，恶果已经产生。

Even as it is, great damage has been done.

即便如此，还是造成了巨大的损害。

But the psychological damage has been done.

但是，心理上的伤害已成事实。

But I was told nothing has been done so far.

但是，有人告诉我，他们到目前为止什么也没做。

In principle, the right thing has been done.

大体上，已经做了正确的事。

There is no evidence that that has been done.

但是，没有任何证据表明我们做到了这些。

Check to see whether DB tuning has been done.

检查是否完成了数据库的优化。

An injustice has been done. It will be righted.

不正义的事情已经发生了，而这件事将得到昭雪。

What has been done to evaluate the IMCI strategy?

为评价儿童疾病综合管理战略已经做了什么？

Similar damage has been done to reefs off Norway.

同样的破坏还发生在挪威外海的珊瑚礁。