leaf有哪些形式

复数形式是leaves，例如：

1.The leaves formed a dark green rosette.这些叶子聚在一起，像是一朵深绿色的玫瑰。

2.The pond was choked with rotten leaves.池塘被腐烂的叶子塞满了。

3.The Japanese maple that stands across the drive had just come into leaf.车道对面那棵鸡爪枫刚吐新叶。