Not until just before dawn do people sleep best; not until people get old do they become wise.

只有到凌晨人们才睡的最熟，只有到年老时人们才变得聪明。

youdao

Not until just before dawn do people sleep best; not until people get old do they become wise.

只有到凌晨人们才睡的最熟，只有到年老时人们才变得聪明。

youdao