This is very, very hard to do.

毫无疑问，这很有挑战性。

It's really hard, though. -That's hard, man.

真的很难。 -那真的很难。

And the wind has to blow pretty hard!

风力分强劲！

And she added, " Because I work so hard! "

“因为我工作太努力了！”

Steve, you shouldn't, we've worked so hard.

Steve, 不应该呀, 我们工作地如此努力。

Ember had never seen her father cough so hard.

小焰从未见过她父亲咳嗽得如此厉害。

Shares in American regional lenders were bludgeoned much harder.

美国地区性贷款机构的股也遭受了更为沉重的打击。

And my mom works really hard to make tuition.

我妈辛苦给我挣学费。

I work so hard and it's a thankless job.

我工作很努力，这是一份吃力不讨好的工作。

" If space is hard, landing is harder, " Laurie Leshin wrote.

劳里·莱欣写道：“如果飞向太空很难，那么着陆就更难”。

I want you to hit me as hard as you can.

我尽全力打我。

If you're breathing too hard to talk in complete sentences, back off.

如果喘得太厉害，甚至连话都说不全了，就停下来吧。

Work hard, study harder, and remember, the only thing holding you back is you.

努力工作，努力学习，记住，唯一阻碍的就是自己。

But by pushing themselves too hard, they've put themselves in a fragile position.

但是由于把自己逼得太紧，他们把自己置于脆弱的境地。

It was very, very hard labor.

这是非常辛苦的工作。

That would make the already difficult job of removing the melted fuel even harder.

这将使本已困难的清除熔化燃料的工作变得更加困难。

Sometimes the situation is hard to read and the lines are hard to draw.

这些情况很难分辨，也很难设定界限。

It's hitting our wallets hard too.

我们的钱包也深受其害。

There will be four stages and it will get harder and harder with each stage.

一共有四个阶段，每个阶段都会变得越来越困难。

He showed up early, he stayed late, and worked ten times harder than everyone else.

他早出晚归，工作比其他人努力倍。