make certain of

基本解释

We must make certain of facts.
我们一定要弄清事实。
Make certain of your position in the firm before you argue with the director.
你在和经理争辩之前，要首先弄清你在公司里的地位。
A control analysis of academic achievements of medical class students taught in English has been conducted to make certain of the teaching effect.
为研究英语医学班的教学效果，对英语医学班学生的学习成绩进行了对比分析。

"We will not only defend ourselves to the uttermost but will make it very certain that this form of treachery shall never again endanger us ...
When people study stereotypes they often make certain distinctions between three levels of stereotypes and this is nicely summarized here.
当人们研究刻板印象时,他们通常会区分,三个层次的刻板印象,这里已经清楚地总结起来了。
耶鲁公开课 - 心理学导论课程节选
Now, recruiting is tremendously important because you need to have a certain number of settlers to make the settlement viable.
招募是极其重要的,因为你需要有一定数量的移民,来维持居住地的运转
耶鲁公开课 - 古希腊历史简介课程节选

Expanding coverage is likely to make certain types of cost containment easier to achieve.
WHITEHOUSE: CEA -- Chair's Remarks -- 06082009