The admiral says the situation in Iraq seemed impossible to resolve a few years ago, and,although the two countries are very different,and progress in Iraq is not a guarantee of progress in Afghanistan, it does give him reason to be hopeful about Afghanistan - even during the current period of heavy violence and at best,slow progress.

VOA: standard.2010.07.22

There were words in there--they said something--of course, we cannot guarantee that they won't go up in value but historically they have always done it or something like that.

他们在文中吹嘘...当然,我们不能保证金币不会升值,但金币的历史行情趋势始终向上

耶鲁公开课 - 金融市场课程节选

Halls, they try to design halls such that that doesn't happen, and I show an example of a concert hall here -- this is Symphony Hall in Boston, and I can pretty much guarantee you if you do go to this Symphony Hall, you will not experience a bad seat or a dead seat.

大厅，他们建大厅的时候,尽量要避免这种事,我这里给你们展示一个,音乐厅的例子-这是波士顿,的交响乐厅，我可以向,你们保证如果你去那里的话。

麻省理工公开课 - 化学原理课程节选

We would have to see if we can arrange that. Again, I don't guarantee that it will happen because the reality is, someone who is involved in as many things as he is-- it's going to be something.

我会再去安排一下,但我不保证他一定会来,他有太多的安排,有可能会有突发情况

耶鲁公开课 - 金融市场课程节选

Inflation is the most important thing according to many views because the Fed has to guarantee the soundness of the money supply -- and there have been so many cases in history when the central bank allowed debasement of the currency through inflation.

通货膨胀是最重要的事情,根据很多观点,因为美联储必须保证,货币供应的稳固,并且在历史上有太多的例子,当中央银行允许,通过通货膨胀改造货币。

耶鲁公开课 - 金融市场课程节选