1.把...弄明白,弄确实,保证
1.to take action in order to be sure that something happens or to be sure that it is true
1.Deerslayer waited a little to make certain that he had at last gained the desired position, when he gave the signal agreed on.
杀鹿人稍微停了一下，看清了自己所要到达的目的地，就发出了约定的信号。
2.Now that he was on his legs, it was more difficult to make certain of his age.
虽然他已经站了起来，却叫人更捉摸不透他的年令。
3.Make certain (that) you know what time the train leaves.
你要弄清楚火车开出的确切时间。
4.Another very simple way to "Use less, gain more" is to make certain our presentations or our pitches always end just a few minutes early.
另一个非常简单的方法是，”用的少，得到的多“是为了确定我们的演讲或者我们的球场总是提前几分钟结束。
5.He had impressed me that Italy, not Germany, would have to make certain statements for the next Apostolic move of God to begin.
祂感动我，是义大利，而不是德国，必须作出某些陈述，为著下一波上帝的使徒性行动而开始。
6.I was the first recruit to get out. I'm going to make certain I'm not the last.
我是第一个跳出魔窟的成员，也绝不会成为最后一个。
7.If you had a custom display mode, you might want to make certain controls visible if the custom mode is going to be the new display mode.
如果有自定义的显示模式，并且该自定义的模式将成为新的显示模式，您可能想要显示某些控件。
8.We have got to make certain we stop any vulnerability with that simplistic type of play.
我们需要确保，在这种简单进攻方式面前出现的漏洞必须停止了。
9.On target machines that have instruction caches, GDB requires this function to make certain that the state of your program is stable.
在有指令缓存的目标机上，gdb需要这一函数，以确定你的程序的状态是稳定的。
10.Make certain you know what time the train arrives, please.
请弄清楚火车到达的时间。