The study of waves and the ocean also allows scientists to make sure how certain beaches were formed.

对海浪和海洋的研究也让科学家们能够确定某些海滩是如何形成的。

youdao

If you see words such as these that denote something as certain and absolute, make sure that they are indeed, certain.

如果你看到这样的字词表示一些事情是确定的和绝对的，要确认他们是真实的。

youdao

And if you suspect the other party is not familiar with certain terminology, make sure to avoid it.

如果你不确定对方懂得某些术语，尽量确保避免使用这些术语。

youdao

They actually make sure that certain streets get ploughed and other streets do not get ploughed when there is a snowstorm.

VOA: special.2011.04.25

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 you speak with someone who is very knowledgeable about the prices of certain things.

一定要跟某些很了解价格行情的人谈谈。

关于购买艺术品 - SpeakingMax英语口语达人

Even if you are careful about your Facebook privacy settings and you make sure only certain colleagues see your posts, Facebook postings are not as effective as in-person meetings about the problem at hand, says Golden.

FORBES: When Is It OK To Diss Your Boss Online?

Marketers are tweaking ads to make sure the "message gets through" and "are trying to make sure they are not offending certain audiences, " says Eileen Campbell, chief executive officer of the research company.

WSJ: Advertisers Practice for Super Bowl

How are you going to give us that confidence and make sure that we're certain about both the near-term and long-term growth prospects?

WHITEHOUSE: President Obama Closes Forum on Jobs and Economic Growth