名 （碎末） bits，scraps，crumbs；形 （琐碎） trifling；动 （认为值得） think sth. worth doing ；

[例句] 他用大衣袖子把碎屑掸掉。 He cleaned the flakes away with his coat sleeve.

[例句] 她擦掉嘴角的面包屑。 She flicked a crumb off the corner of her mouth.