She looked around to make sure that she was alone.

她往四下里看看，是不是只有她一个人。

《牛津词典》

He looked in the bathroom to make sure that he was alone.

他往那间浴室里看了看，以核实那就他一个人。

《柯林斯英汉双解大词典》

Drivers are urged to make sure that car engines are properly tuned.

司机们被要求要确保把汽车发动机调整好。

《柯林斯英汉双解大词典》

I think it's still possible for us to stamp out al- Qaida, to make sure that extremism is not expanding but rather is contracting.

VOA: special.2009.02.21

There's a certain pragmatic element behind this, basically we want to make sure that every human being has a dignified life.

这后面是有实用的因素，因为我们想确保,每个人都过上有尊严的生活。

普林斯顿公开课 - 人性课程节选

to make sure that it's going to be a comfortable pair of shoes that last me a long time.

来保证这双鞋很舒服而且可以穿很久。

不需要名牌 - SpeakingMax英语口语达人

We really need to focus on trying to make sure that people don't stigmatize the community even further.

NPR: Tracking a New Strain of Drug-Resistant Staph

He said the government had to make sure that message was put across clearly.

BBC: UKIP is here to stay, says Nigel Farage

And it is our responsibility to the next generation to make sure that that gets solved.

WHITEHOUSE: G20 Summit Presidential Press Conference