知识就是你必须 花 力气才能学到，而在睡觉时是绝对学不到的。

You have to reach for them, and that you cannot do while you are asleep.

youdao

知识就是你必须 花 力气才能学到，而在睡觉时是绝对学不到的。

You have to reach for them, and that you cannot do while you are asleep.

youdao