v.崩潰；弄碎；破滅
The masonry of the old building began to crumble. 舊樓房的磚石結(jié)構(gòu)開(kāi)始崩落。
He crumbled the bread in his fingers. 他用手指把面包捏碎了。
Even these hard parts may crumble to dust. 甚至這些堅(jiān)硬的部分也會(huì)破成碎粉末。
His dearest hopes crumbled to nothing. 他最大的希成了泡影。
