rack /ræk/ I. n. ［c］ 搁架，挂架：a tool rack 工具架；a clothes rack 衣架；a plate-rack 餐具架 ‖II. vt. 使痛苦，折磨：a racking headache 折磨人的头痛；be racked with pain(a cough ) 苦痛不堪（ 咳得难受） rack one’s brain(s) 绞尽脑汁：I’ve been racking my brains all day trying to remember his name. 我一整天都绞尽脑汁，想要回忆起他的名字。