他干活很有劲。
He works with vigor.
vigorous; energetic; interesting; amusing
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.
他干活很有劲。
He works with vigor.
这故事听起来很有劲。
This story sounds interesting.