适可而止

chū liàn cháng pǎo yào shì kě ér zhǐ bù néng guò liàng

初练长跑要适可而止，不能过量。

A beginner at long-distance running must know when to stop and not overdo it.

wǒ bìng bù jiè yì yǒu qù jiàn kāng de wán xiào dàn shì yào shì kě ér zhǐ

我并不介意有趣、健康的玩笑，但是要适可而止。

I don't mind good and clean fun, but enough is enough.

gāi jué xǐng le gào sù nǐ zhōu wéi de rén yào shì kě ér zhǐ

该觉醒了，告诉你周围的人要适可而止。

It's time to wise up and tell those around you that enough is enough.

tā zhī dào shén me shí hou yīng gāi shì kě ér zhǐ shén me shí hou gāi chā shǒu gān yù

他知道什么时候应该适可而止，什么时候该插手干预。

He knew when to leave well alone and when to interfere.