这就是我们必须要记住的事情。

This is the thing that we must keep in mind.

youdao

这就是我们必须要记住的教训。

This is the lesson that we must keep in mind.

youdao

我们必须要记住，人们还有生活。

"We need to remember that life happens," he says.

youdao

Ordinary soldiers do not attend, and that's one of the things I think we must grasp immediately.

普通士兵没有权力参加,这点是我们必须要记住的

耶鲁公开课 - 古希腊历史简介课程节选