rattle /ˈrætl/ I. vt. & vi. 发出连续短促的尖利声：A cart full of milk-bottles rattled past.一辆载满牛奶瓶的车子嘎嘎作响地驶过。rattle off/on 滔滔不绝地说，背得滚瓜烂熟：He can rattle off all of the American Presidents in order. 他可以很快地依顺序背出所有美国总统的名字。The child rattled off the poem he had learnt. 那孩子把学到的那首诗背得滚瓜烂熟.‖II. n.［c］ 连续短促的尖利声；嘎嘎作响的玩具：The rattle of the engine was very loud.发动机的嘎嘎声很大。