VERB
（事物的尺寸、程度、影響力等由于不使用或未受到保護而）變小，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...
如果你老不用腦，那么這一特殊才能就會退化。
Many hoped he would renew the country's atrophied political system.
很多人都期望他能使該國萎靡的政治體系振作起來。