Crumbs are tiny pieces that fall from bread, biscuits, or cake when you cut it or eat it.
例句
I stood up, brushing crumbs from my trousers.我站起來，撣掉褲子上的碎屑。
N-COUNT
一點;少許
A crumb of something, for example information, is a very small amount of it.
例句
At last Andrew gave them a crumb of information...最后，安德魯向他們透露了一點信息。The government were able to draw a few crumbs of comfort from today's unemployment figures.政府能夠從現在的失業人數中得到些許安慰。