migration of larva

例句：

1. 1. The migration of birds is a fascinating natural phenomenon.
   鸟类的迁徙是令人着迷的自然现象。
2. 2. The company's relocation to a new office building was a major project.
   公司搬迁到新的办公楼是一个主要项目。
3. 3. The dispersion of the population has had a significant impact on the economy.
   人口的分散对经济产生了重大影响。