葉子是可數(shù)名詞，leaf(復(fù)數(shù)leaves)。

leaves英 [li?vz]美 [livz] n. 樹(shù)葉；花瓣（leaf的復(fù)數(shù)）v. 離開(kāi)（leave的第三人稱(chēng)單數(shù)）例句：

1. Some leaves fluttered to the ground. 一些樹(shù)葉飄落到地面。

2. Leaves turn in autumn. 樹(shù)葉在秋天變黃。

3. Leaves fall off the trees in the autumn. 秋天， 樹(shù)葉紛紛從樹(shù)上掉下來(lái)。