late 15c., kremelen, from Old English *crymelan, presumed frequentative of gecrymman "to break into crumbs," from cruma (see crumb). The -b- is 16c., probably on analogy of French-derived words like humble, where it belongs, or by influence of crumb. Related: Crumbled; crumbling.
权威例句
1. Rice flour makes the cake less likely to crumble.
这种糕饼用米粉做不那么容易碎。
2. Brighton have too many experienced players to crumble just because we are in town.
布赖顿队有很多经验丰富的队员,他们不会因为我们在城里就丧失斗志。
3. He is a skilled and ruthless leader who isn't likely to crumble under pressure.
他是个经验丰富、冷酷无情的领导,不会被压力击垮。
4. It only takes a minute for the football hopes of an entire country to crumble.
就在一分钟之内,全国民众的足球梦想就化为了泡影。
5. Even if the seas go dry and rocks crumble , my will will remain firm.