racks/ræk/动词使肉体（或精神上）受巨大痛苦；折磨He was racked by/with doubts/guilt.他被疑虑／内疚所折磨。/ræk/名词架子；搁物架a plate rack盘碟架（羊或猪）颈肉The butcher prepared a rack of pork.那个屠夫准备了一块猪颈肉。齿条；齿轨；齿棒想跟读，去练习
