He says is not good and will hit his income hard.

VOA: standard.2010.04.12

Now for now, its hard to argue that this is a good thing but it's a common thing.

现在，不好争论这是一个好事情,但这是一个通常的事情。

哈佛公开课 - 计算机科学课程节选

There's been a lot of work done on these over the years, but in fact, it's pretty hard to invent a good hash function. So my advice to you is, if you want to use something was a hash, go to a library. Look up a good hash function.

已经做过了很多的尝试和努力,但是事实是，很难发明出一个好的哈希函数,所以我给你们的建议是,如果你们想使用哈希功能,到函数库中查找一个好的哈希函数。

麻省理工公开课 - 计算机科学及编程导论课程节选

"They have not got their acts together. So I think the Swat operation has sent a very strong signal and if the government now starts an operation in even Waziristan, which is considered as a hard nut, I think it has good chances to succeed."

VOA: standard.2009.09.14

It's dark. The other, dark, in the sense of gloomy, not good, bad; this is a hard time, a poor time, a wretched time, a miserable time.

因此称之为黑暗,另一个理由是,黑暗从悲观的角度来说就是不好的,坏的,这是一个艰难的时代,一个穷苦的时代,一个不幸的时代,一个悲惨的时代

耶鲁公开课 - 古希腊历史简介课程节选

And so what I'm really doing is inviting you to take a good, cold, hard look at death, and to face it and think about it in a way that most of us don't do.

那就是我要你们做的，认清，死亡的好和坏，面对它，然后思考它,用我们从没用过的方式。

耶鲁公开课 - 死亡课程节选

just being able to keep saying from a person's perspective which is very hard to see when you get very tense and very defensive. And it's just so good for me to have have someone like Saed especially with Saed personally, just to have that gate.

就是能够,从一个个人的角度聊问题,而如果你很紧张就很难做到这一点,很有戒备心的时候就很难，所以我能够,有Saed是非？牡？,有这扇门。

普林斯顿公开课 - 人性课程节选