如果不满21岁喝酒是违法的，那他们酒后驾车也应是违法的。这太容易理解了。

If it's illegal for someone under 21 to drink, it should be illegal for them to drink and drive. That's a no-brainer.

《柯林斯英汉双解大词典》

他们也帮助他理解，人们必须合作，为共同的目标而努力。

They also help him understand that people must cooperate and work toward common goals.

youdao

他们也缺乏对基本经济学的理解。

They also lack an understanding of elementary economics.

youdao

There's other disorders of language such as receptive aphasia where the person could speak very fluently but the words don't make any sense and they can't understand anybody else.

还有其他的语言障碍,诸如,接收性失语症,患有这种病的病人,语言流畅,但所讲话语没有任何意义,而他们也无法理解别人的话语

耶鲁公开课 - 心理学导论课程节选

Because that's really complicated and hard, and that's what we help with.

因为法律体系真的很复杂，也很难理解。这正是我们能给他们提供援助的地方。

我帮助过的人们 - SpeakingMax英语口语达人