One must foresee the end clearly and certainly and how is this to be done, by ordinary men or even by extraordinary men?

一个人必须要清楚而确定地预见到结果并且了解这将如何进行，一个普通人，就算他是个超群的人？

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In the old days this used to be done with a baggage train of camels.

在古时候，这常常由一队拉行李的骆驼来完成。

《柯林斯英汉双解大词典》

All this is to be done without big increases in the basic level of taxation.

所有这一切将在没有大幅度提高最低所得税标准的情况下进行。

《柯林斯英汉双解大词典》

This must be done to equally divide the four hundred thirty-five voting districts in the House of Representatives among the states.

VOA: special.2010.12.25

So there already are some approaches like this that are working, but there's more that needs to be done.

现在我们已经有相关的治疗方法,但还有很多地方需要改进

耶鲁公开课 - 生物医学工程探索课程节选

But we know this, in particular, from a series of studies that would be unethical if they were to be done today.

我们知道这点，是通过一系列的实验，出于人道精神,这些实验现在就不能做了。

耶鲁公开课 - 心理学导论课程节选

"I think Joyce Banda has (an) amazing opportunity now to open it up, to allow this to be done in a more accountable way so that there isn't the opaqueness, there's more transparency and we can avoid the spiraling inequalities which occur through oil wealth, " he said.

CNN: Troubled water: Oil search fuels tension over Lake Malawi

Economists who advocate raining down dollar, euro, and yen bills from their high-flying helicopters say this needs to be done to gin up flagging demand, but this puts the cart before the horse.

FORBES: Value Destroyers Like Bernanke Fancy Themselves Magician Economists

Could coffee beans be ground the night before you used them, or did this have to be done in the morning?

NEWYORKER: Good Neighbors