他的视力退化了。
Tā de shìlì tuìhuà le.
English
His eyesight has deteriorated.
to degenerate
to degenerate; atrophy
Every character draws itself stroke by stroke, then hands you the brush to trace it yourself.
Nice writing!
他的视力退化了。
Tā de shìlì tuìhuà le.
His eyesight has deteriorated.
退化的功能要练。
Tuìhuà de gōngnéng yào liàn.
Weakened functions need exercise.
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.