他的视力退化了。
His eyesight has degenerated.
退化
to degenerate; atrophy
verb HSK 3.0 · Band 7
Watch it being written
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
退
化
Nice writing!
Build with these blocks
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
退
See it in sentences
退化的功能要练。
Lost functions need practice.