n.雌麻鸭
She accidentally knocked the tea tin off the shelf.
她不小心把架子上的茶叶罐碰了下来。
The house stands on a shelf of rock among pines.
房子矗立在松树丛中一块突出的岩石上。
He's useless at DIY. He won'teven put up a shelf.
他自己动手能力太差,甚至连搭个架子都不会。