Obviously, if you know which file has changed you could only copy that, but you won't always know this information.

显然，如果知道哪些文件修改过了，就可以只复制这些文件，但是不总是能够知道这一信息。

youdao

But as we know, this profit can only be fully realised if workers proceed to buy all the consumer products they have produced.

而资本家正是通过找出其中的不同来获取利益的。但是正如我们所知，只有工人购买所有他们生产的消费品才能使资本家实现这个收益。

youdao

This means delivering the truth, but only as much truth as a child needs to know.

这意味着要讲真话，而不仅仅是孩子们需要知道的那些真相。

youdao

But this of course, as we know, is only one of the ways in which Milton's power, or what Woolf thinks of as his leadership, can be thought of.

但我们知道，这不是看待,弥尔顿的力量，或者伍尔夫所指的他的领导力，的唯一方式。

耶鲁公开课 - 弥尔顿课程节选

So this is only important, good to know,important to know, but not enough.

这是很重要的，知道很好，知道很重要，但不够。

哈佛公开课 - 幸福课课程节选

I think what makes a difference is not only do you, yourselves, know better how to play this game now, but you also know that everybody around you knows better how to play the game.

我觉得因为不仅你们自己,玩这个数字游戏玩得更好了,你们也了解到周围的人,也玩得更高了

耶鲁公开课 - 博弈论课程节选

Today 2.7 million Americans are chronically infected with this killer virus, but only 800, 000 of them know it, so slow and insidious is the course of this disease.

FORBES: Magazine Article

And the new tenancy deposit protection legislation goes some way towards this, but only if tenants know about their rights.

BBC: Tenants 'unaware' of deposit schemes

But the fact that this would mitigate climate change not only for the - you know, for the whole planet but for the species that live within these corridors.

NPR: Rocky Mountain Activist Carole King