leaf1/lif; liːf/n [C] plural leaves /livz; liːvz/1 one of the flat green parts of a plant that are joined to its stem or branches 叶子﹔树叶see picture at见 PLANT1 图2 take a leaf out of sb's book to behave like someone else who behaves well 以某人为榜样3 turn over a new leaf to start to behave in a much better way 翻开新的一页﹔改过自新
leaf2v leaf through sthphr v to turn the pages of a book or magazine quickly, without reading it carefully 匆匆翻阅〔书或杂志〕