This is the first transition from one civilian elected government to another.

这是巴基斯坦首次由一个执政期满的民选政府过渡至下一个民选政府。

It seems that millions of years ago in Africa, early hominins first transitioned out of trees and adopted a more active lifestyle.

似乎在数百万年前的非洲，早期的古人类从树居转型为活动性较高的地面生活。

In the first transition, this occurs at any age, but it occurs usually within the first three to five years that we get together and really join into one relationship.

在第一个转变中，这种情况发生在任何年龄，但通常发生在我们聚在一起并真正建立关系的头三到五年内。