Some students are exempt from certain exams.

有的学生可免除某些考试。

《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》

Some doctors advise setting aside a certain hour each day for worry.

一些医生建议每天抽出一定时间思忧。

《柯林斯英汉双解大词典》

"I think the most difficult thing will be to be separated from the people that I am used to, and leaving behind some of the habits - all our activity will be directed towards a certain goal."

VOA: standard.2010.06.02

You look at certain things and you overly -you pay too much attention to some things and too little to others.

当你在观察一些特定的事物时,你会投入过多精力,而在其他方面投入精力不足

耶鲁公开课 - 金融市场课程节选

Some of the important figures-- there had to be certain inventions to make it work.

一些重要人物以及,重要的创新推动了保险的发展

耶鲁公开课 - 金融市场课程节选

As a result, states that mandate a higher degree of coverage force insurers to offer certain benefits- some of which may not be desired by all of the customers residing within the state.

FORBES: Would The Sale of Health Insurance Across State Lines Really Benefit Americans?

Sarah certainly isn't unique and, in fact, there's been a movement toward a certain acceptance -- in some cases even glorification -- of mothers who drink.

CNN: Why are more women drinking?

"At certain places - such as some traffic junctions - where there is evidence to support these cameras being turned on then we should discuss that, " she said.

BBC: Bristol mayor considers switching speed cameras back on