For certain personal reasons I shall not be able to attend.

由于某种个人原因，我将不能出席。

《牛津词典》

Some soils are actually too alkaline for certain plant life.

有些土壤的碱性，实际上对某些植物的生长是过高的。

《柯林斯英汉双解大词典》

The prime minister is heading for certain defeat if he forces a vote.

如果首相强令大家投票表决，那他一定会遭遇失败。

《柯林斯英汉双解大词典》

Some states only permit use for certain diseases like cancer, multiple sclerosis or AIDS.

VOA: special.2010.10.11

All right. With all this said, how can the theorist recuperate honor for certain names like, for example, his own?

好了，说完这些以后，一个理论家该如何,为一些特定的名字，比如，他自己的，恢复尊严呢？

耶鲁公开课 - 文学理论导论课程节选

We don't know for certain. But what might have happened to lead to the two different editions?

我们不能确切知道，但可能发生过什么,导致了这两个不同版本？

麻省理工公开课 - 媒体、教育、市场课程节选

Commodity futures trade on what parties assume the year-end tally for certain crops will be.

FORBES: Sky High Tips For Crop Traders

The only thing he knew for certain, he says, was that everything was about to change.

FORBES: The Dealmaker

They are prevented from applying for certain jobs, making it harder to become self sufficient.

BBC: Heroin 'cheaper than a night out'