leaf的复数是什么（为什么leaf要用复数形式）

复数leaves。它的造句如下：

1.The Japanese maple that stands across the drive had just come into leaf.

2.September had come and the leaves were starting to fall.

复数形式是leaves，例如：

1.He was among the last to leave.他是最后离开者之一。

2.When she leaves school, she wants to learn a trade.她毕业后想学一门手艺。