Pilot Carl Bulwer knows that first hand.

飞行员卡尔·布劳尔对此了如指掌。

Wash your hands first all right?

先洗手，好吗？

So what if you could predict their first hand?

如果你能预测他们的第一手出招呢？

I experienced first hand that this has pros and cons.

我亲身体验到这有利弊。

A Norwegian activist-once recruited by extremists-has seen it first hand.

曾被极端分子招募的一位挪威积极分子对此有着亲身经历。

President Biden visited Louisiana Friday to see the damage first hand.

拜登总统周五访问了路易斯安那州，亲眼目睹了灾情。

Yesterday President Trump, among those to get a first hand look at the devastation.

昨天，特朗普总统，在那些亲眼目睹这场灾难的人中。

He's been witnessing first hand the rapid changes happening here in Seoul.

他亲眼目睹了首尔发生的巨大变化。

I experienced this first hand in Spain, when I went to watch a comedian.

我在西班牙去看喜剧演员表演的时候对这有亲身体会。

But it is also the only view right now that we can get first hand.

但既然我们能够亲自来到这里，这也是目前我们唯一能够看到的景象了。

Naoko Yamazaki, Japan's second female astronaut, has seen the impact of this stuff first hand.

山崎直子，日本第二位女子宇航员，已经看到过这些小斑点的影响了。

But Nick Paton Walsh found first hand how Venezuela is becoming a major currier of cocaine.

但是Nick Paton Walsh亲眼目睹了委内瑞拉正在成为一个主要的可卡因制造国。

There's a video of me building my first hand. It's really long.

这是我制作第一个假肢的视频，非常长。

Your correspondent went undercover to observe at first hand the dangers tourists face in their clutches.

记者亲历地下世界去观察第一手游客们关键时刻面临的危险。

Brady learned this first hand when her first potential adoptive child died

布雷迪是在她的第一个可能收养的孩子去世时亲身了解到这一点的。

I had several classes with her, and was able to observe Dodie's ruination at first hand.

我跟她一起上过几堂课，从而得以亲眼目睹嘟蒂的毁灭。

Most people, they speak about pollution but they don't really feel from first hand the effects of pollution.

大多数人，他们谈论污染，但他们并没有真正感受到污染的影响。

Similar to first hand experience is hands-on experience, and again, this means direct or practical experience with something.

与 firsthand experience 类似的是 hands-on experience，同样，这意味着对某事的直接或实践经验。

And as far as the air quality is concerned, I can tell you first hand it's been absolutely terrible.

至于空气质量，我可以告诉你们，实在是太糟糕了。

He had witnessed at first hand how it could give mere mortals the power to destroy their own world.

弗里曼亲眼目睹了科学如何赋予凡人摧毁自己世界的力量。