be certain to

基本解释

In other words, prove your worth on paper and be certain to provide copies to those involved in the interview process.
换句话说，用书面形式证明你的价值，并且一定要在面谈过程中能够提供这些文件的复印件。
If you do decide to embed your styles in one of your main stylesheets, be certain to write them such that they are only applied when the script has run successfully.
如果你决定将样式嵌入在某个主要样式表中，一定要采用上面的方法来给元素添加样式，以使得这些样式仅在脚本成功运行时才会被应用。
blog.sina.com.cn
It was a very dark evening for summer: the clouds appeared inclined to thunder, and I said we had better all sit down; the approaching rain would be certain to bring him home without further trouble.
阴云密布，很像要有雷雨，我说我们最好还是坐下来吧：即将到来的大雨一定会把他带回家的，用不着再费事。但是没法把凯瑟琳劝得平静下来。
putclub.com

"When I was reared in the British West Indies my grandmother used to always tell me, you may not be loved by certain forces in a society and you have to understand why.
That is to say, theory has certain ambitions to a totalization of what can be thought that resembles or rivals philosophy.
也就是说，理论探讨的问题,与哲学相似或相媲美,而且倾向于把它完整化。
耶鲁公开课 - 文学理论导论课程节选
If there is atmosphere in the passage I'm about to quote from Macbeth, it must be atmosphere of a certain kind and there for a certain reason.
如果下面这篇《麦克白》里的选段有所谓的“气氛“,那这种气氛一定因为某种原因以某种形式存在着。
耶鲁公开课 - 文学理论导论课程节选

It is the one time marketers can be certain to reach a large portion of the U.S. population.
FORBES: Super Bowl Advertising's New Game