vt.

1. 粉碎，弄碎
   She crumbled an empty snail shell in her fingers.

   她用手指捏碎了一個空蝸牛殼。

2. 摧毀，破壞
   The recent earthquake crumbled the walls of many houses.

   最近一次地震震坍了許多房子的牆。

vi.

1. 破碎，碎裂
   This bread crumbles ever so easily.

   這種麵包非常容易碎。

2. 崩潰，滅亡，消失
   In the end, the Roman Empire crumbled.

   最終，羅馬帝國崩潰了。

v.

▸disintegrate gradually:

the party's fragile unity began to crumble.

n.