Jurors must find a defendant not guilty even if they are not completely sure the person is innocent of any crime.

VOA: special.2009.08.31

You feel physiologically aroused but you're not completely sure why, and you have to make up an explanation for it.

你感觉到性觉醒,但是不能确定是什么原因，你不得不给出一个解释。

耶鲁公开课 - 心理学导论课程节选

Still, it's worth reviewing these questions to make sure that we completely understand how to use this pattern.

但是，我们还是要回顾一下这个句型的要点，确保能够准确地理解这个句型的用法。

Who 课堂 - SpeakingMax英语口语达人

So it`s sort of a key issue for children and for adults actually to make sure that When we use a software that has more than one language it has to be completely in each language.

所以无论对成人还是儿童来说,这都是关键问题,当我们使用一款宣称拥有多语种的软件时,必须确保它的每一种语言都是完整的。

麻省理工公开课 - 媒体、教育、市场课程节选