叶英文怎样拼

leaf 英[li:f] 美[lif] n. 叶子; 页; 叶状的结构; 金属薄片; vt. 翻书（报）; vi. 生叶; [例句]In the garden, the leaves of the horse chestnut had already fallen花园里，七叶树已经落叶了。