另一个的英文是The other one。

例句：

1、他受了伤，另一个选手取代了他。

He was hurt, and another player replaced him.

2、我生命中有两大支柱：一个是酒，另一个是工作。

I had two props in my life; one was alcohol, the other work.

3、公司搬到了另一个州，我便失业了。

I lost my job when the company moved to another state.

4、我把另一个儿子送到乡下和亲戚住在一起。

I sent my other son to the country to stay with kinfolk.

5、我再给你举另一个例子吧。

I'll give you another example.