他写了一本专著。
Tā xiě le yì běn zhuānzhù.
English
He wrote a monograph.
monograph
monograph; specialized text
Every character draws itself stroke by stroke, then hands you the brush to trace it yourself.
Nice writing!
他写了一本专著。
Tā xiě le yì běn zhuānzhù.
He wrote a monograph.
这本专著很厚。
Zhè běn zhuānzhù hěn hòu.
This monograph is thick.
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.