VERB
（事物的尺寸、程度、影响力等由于不使用或未受到保护而）变小，退化
If something atrophies, its size, degree, or effectiveness decreases because it is not used or protected.
例句
If you allow your mind to stagnate, this particular talent will atrophy...
如果你老不用脑，那么这一特殊才能就会退化。
Many hoped he would renew the country's atrophied political system.
很多人都期望他能使该国萎靡的政治体系振作起来。