他很懂规矩。
Tā hěn dǒng guīju.
English
He knows the rules well.
rule; custom
lit. compass and set square; fig. established standard; rule
Every character draws itself stroke by stroke, then hands you the brush to trace it yourself.
Nice writing!
他很懂规矩。
Tā hěn dǒng guīju.
He knows the rules well.
这是老规矩。
Zhè shì lǎo guīju.
This is the old rule.
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.