“退化”造句
鸡的翅膀逐渐
退化, 不会在空中飞行了.
The wings of the chicken have become vestigial; it can no longer fly.
在一些干旱地带存在严重的土地
退化问题。
There are serious problems of land degradation in some arid zones.
如果你老不用脑，那么这一特殊才能就会
退化。
If you allow your mind to stagnate, this particular talent will atrophy.