Experts say it will be hard to find a nominee with as much experience in both health issues and politics.

VOA: special.2009.02.06

Well, it's a little hard to say.

这有点难说。

耶鲁公开课 - 现代诗歌课程节选

It's a hard thing to say, really.

这很难说。

如果在皮克斯工作 - SpeakingMax英语口语达人

But lawyers say the SFO may find it hard to get a conviction on accusations of bribery before that date.

VOA: standard.2009.10.01

Er, right now it's hard to say.

额，现在还很难说。

斯坦福公开课 - 经济学课程节选

For many people trying to shed a few kilograms, it's hard enough to lose the weight, but many experts say it's even harder to keep the weight off.

VOA: standard.2010.07.30

That's hard for me to say

我很难说，

旧金山和洛杉矶的差异 - SpeakingMax英语口语达人

Some of those is hard to put a price on, but I would say through the entire show we got to have $50,000, sitting in the show at one time.

VOA: standard.2010.02.21

The last thing I want to say about hashes are that they're actually really hard to create.

最后我想说的是哈希函数非常难以创立,在过去的时间里。

麻省理工公开课 - 计算机科学及编程导论课程节选

But analysts say public transport is hard to police.

VOA: standard.2010.04.01

It seems sort of hard to believe,but maybe that's the right thing to say.

似乎有点难以置信，但也许这才是对的。

耶鲁公开课 - 死亡课程节选

We realized we had to push certain boundaries and there were a few weeks there that were,I have to say, some of the most hard-core filming experiences I have ever had and it was pretty intense."

VOA: standard.2010.02.27

The reason the mafia thrives in countries where it's hard to write legal contracts-- let's say some new parts of the former Soviet Union or some parts of Africa the reason the mafia thrives in those environments, is that it substitutes for the law and enforces both legal and illegal contracts.

黑恶势力在那些,书面协议不受保护国家不断壮大,比如前苏联新成员国 或者非洲,为什么黑恶势力在这些地方发展壮大,因为这是法律强制力的补充,它维系所有合同,不管是不是合法的

耶鲁公开课 - 博弈论课程节选

Rural areas are largely untapped. "So the government needs to work hard to diversify its export commodities, export products, add more value by processing more, let's say agriculture production in the country and thereby create more jobs to help the economy grow faster."

VOA: standard.2010.06.02

They just say, "It's just because!" It's hard to know exactly why it's "a".

他们只会说“没有为什么！”为什么用“a”很难确切搞清楚。

韩国人经常犯的失误 - SpeakingMax英语口语达人

Now if all we have to go on is just this semiotic system, it's going to be kind of hard to put up resistance to by the same token we'll say "yellow" means "pause," "green" means "go."

而从语义学角度分析，我们必须不能这么想,这样绿色自然就表示继续，黄色表示暂停“

耶鲁公开课 - 文学理论导论课程节选