鸟儿们在迁徙的路上。

The birds are on their ___migration journey.

许多人因为战争和贫困而进行国际迁徙。

Many people undertake international ___migration due to war and poverty.

我们银行正在将数据迁移到新系统。

Our bank is in the process of ___migrating data to the new system.

我们计划下周将数据库迁移到云端。

We plan to complete the database ___migration to the cloud next week.