I fully understand your motives.

我完全理解你的动机。

We do not fully understand how the brain is organized.

我们不完全了解大脑是怎样构成的。

Even if you highlight important points or take notes in a class, you probably do not fully understand what you learned.

即使你在课堂上用彩色笔标出中重点或记笔记，你都不一定能完全理解你学到的东西。

Eventually he reorganized the unit into a team that most of his people didn't fully understand him.

最后，他把这个单位重组成了一个团队，他大部分手下都不是很理解他这种做法。

Will they fully understand?

他们是否能完全理解？