他堕落了。
He has degraded himself.
to degrade; to degenerate; to become depraved
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.
他堕落了。
He has degraded himself.
堕落的人也能回头。
A fallen person can still turn back.