他致力于研究历史。
He devotes himself to historical research.
to devote oneself to; to work toward
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
Nice writing!
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
他致力于研究历史。
He devotes himself to historical research.
他们致力于保护环境。
They work to protect the environment.