spring molt

例句：

1. 1. The cat's spring molt is a natural process that helps it shed its old fur and grow new ones.
   猫的春季换毛是一个自然过程，帮助它摆脱旧毛并长出新毛。
2. 2. During the winter months, many animals go through a period of molting to prepare for their spring migration.
   冬季，许多动物经历一个脱毛期，为春季迁徙做准备。
3. 3. The autumn leaves are changing colors, and soon we will see the trees in full spring molt.
   秋天的树叶正在变色，不久我们将看到树木换上春天的新装。