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The President visited the area to see the devastation at first hand.

总统亲临该地区视察受损情况。

《牛津词典》

He arrived in Natal to see at first hand the effects of the recent heavy fighting.

他到纳塔尔亲自察看最近的激战所造成的影响。

《柯林斯英汉双解大词典》

He will place his hand on the same Bible that Lincoln used at his first inauguration in 1861.

VOA: special.2009.01.19

So let's first look at the left hand side.

所以首先让我们看看左手这边。

麻省理工公开课 - 热力学与动力学课程节选

For those of you don't know what that is it's simply an instrument that counts radioactive particles in the air, and MIT now that you're at MIT, you'll all have a chance to see one first hand if you're ever in any of the labs, especially in the chemistry or bio labs.

不知道它是什么,它就是一个简单的,计算在空气中放射粒子数目的仪器,你们现在来了，如果你们在实验室里工作的话,尤其是化学和生物实验室，你们有很多机会亲手用到它。

麻省理工公开课 - 化学原理课程节选

"I know at first hand the governor's commitment to restorative justice, " he said on Twitter.

BBC: Welsh Secretary David Jones backing North Wales prison

Among other matters, it would enable their students to learn about agricultural protectionism at first hand.

ECONOMIST: French lessons

Paul Theroux, a hard-to-please American travel writer, experienced French intractability at first hand on the Orient Express.

ECONOMIST: For some, France is still on the other side of the earth