She had a pretty tough childhood.

她度过了一个非常艰苦的童年。

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Ink can be pretty tough to get out, but most ballpoint pen ink stains come out with lots of persistence and patience.

墨迹很难清除，不过，只要有足够的恒心与耐心，大部分圆珠笔印迹都是可以清除的。

youdao

You look pretty tough.

你看起来也很坚强。

youdao

And I talked to a couple of Rangers who were in some pretty tough fights that were surprised that the Taliban were as good and sophisticated as they were,"

VOA: standard.2009.07.20

But it's pretty tough.

但这真的很难。

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Those were really tough tours. They were kept out very often for up to three months, under some pretty grueling conditions.

VOA: special.2010.06.21

Stein says those healthy numbers would have made it pretty tough to show a difference.

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Furthermore, secondly, on all topics -- and there have been some pretty tough topics.

WHITEHOUSE: President Obama and President Sarkozy at the White House

Unfortunately, sometimes staying in the zone is pretty tough as my colleagues get into the office.

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