We know about magnetism by the way magnets act.

我们通过磁铁的作用知道磁性是怎么一回事。

I know nothing at all about the recent happenings there.

对那里近来发生的事我一点儿也不知道。

She was dredging up the little she knew about babies.

她努力回忆自己知道关于婴儿的那点皮毛。

CASEY SERIN knows all about the excesses of America's housing bubble.

CASEY SERIN非常了解美国房地产市场过多的泡沫成分。

It subsequently emerged that he had known about the deal all along.

随后的情况显示他一直都知道这件事情。

What do professors and academics sitting in their ivory towers know about the real world?

那些坐在象牙塔里的教授和学者对真实世界又知道多少？

You often find a writer's books more comprehensible if you know about his life.

"你如果了解作者的生平,就会感到他的作品更容易理解。"

However, we can know nothing through this process about the "numina" (inward realities) of nature.

但是，在这一过程中，我们对自然界的“numina”（内在现实）依然毫无所知。

He's very young and inexperienced, and doesn't know about the ways of the world.

他还很年轻, 又缺乏经验, 不懂得人情世故。

"I don't know about that," said Halidome, more and more superior as Shelton grew warmer.

“这一点我不知道，”哈立桐说，谢尔顿越激动，他就越占上风。

You seemed to know about this book, and by inference I thought you had read it.

你好像了解这本书, 因此我推断你已读过它了。

Don't let Barry know about our plans for the ski trip or he'll upset the applecart.

别让巴里知道我们要去滑雪，他会坏事儿的。

But the links have not been proved and little is known about groups such as Boko Haram.

但是，链接关系没有得到证实，并且对博科圣地这类组织有所了解的人甚少。

Everyone knew about it before it was officially announced: the bush telegraph had been at work again.

还没有正式宣布大家就都知道这事了，又是从小道消息传出来的。

It will be directive to know well about Falla and extemportize this piece of masterpiece regarding to analysis and investigation.

法雅的作品《西班牙民歌七首》，是他的代表性声乐杰作，对其进行分析与研究，对于了解法雅以及演唱此部作品都有良好的指导作用。

If want to largen and strengthen the clothing industry,the Humen clothing industry cluster must know about the situation,make sure strategy,renew concept,...

虎门服装产业集群要做大做强,应认清形势,确定战略;更新观念,明确目标;有效管理,确保发展。

So little is known about it, because there is only about 1 ATOM OF FRANCIUM IN A CUBIC FOOT OF URANIUM ORE!

对它所知甚少,因为在1立方英尺的铀矿石中,仅有1个钫原子!