/ˈrætl ||; ˈrætḷ/verb1 [I,T] to make a noise like hard things hitting each other or to shake sth so that it makes this noise （使）发出硬物碰撞声；卡搭卡搭作响: The windows were rattling all night in the wind. 窗子整晚被风刮得格格作响。He rattled the money in the tin. 他把罐内的钱摇得当当响。
2 [T] (informal 非正式) to make sb suddenly become worried 使突然不安: The news of his arrival really rattled her. 他到来的消息使她惶惶不安。
rattle sth off to say a list of things you have learned very quickly 迅速背诵:
She rattled off the names of every player in the team. 她一口气说出了队中每个球员的名字。