crumb/krʌm/复数形式crumbs1碎屑, 小块a small piece of a baked product such as a cake, bread, etc.2碎屑, 卑鄙的a person who is deemed to be despicable or contemptible同义词： bumscum bagrotterso-and-soskunkstinkpotlowlifegitratstinkerpukedirty dog3碎屑, 少量a very small quantity of something