Definition: to break into small pieces, or to make something break into small pieces Level: C2
建筑物在地震袭击时坍塌了。
Buildings ___crumbled as the earthquake struck.
房子颤抖得如此猛烈，以至于你以为它随时都会坍塌。
The house trembles so fiercely that you think it's going to ___crumble any second.
她用手指捏碎了干叶子。
She ___crumbled the dry leaves in her fingers.
