这个项目的第一阶段预计在八月前完成。

The first ___phase of the project is likely to be completed by August.

我们正在进入国际关系的新阶段。

We are entering a new ___phase in international relations.

许多人认为童年是人生中最美好的阶段。

Many people believe childhood is the best ___phase of a person's life.