1.a chance in a million

这是一个名词性短语。Chance的意思是“机会”。A chance in a million 意为白万年的一个机会，意为“很小的机会”。

2.be interested in 对 ... 感兴趣

例句:

Bob mentioned the class presidency to Ted as a trial balloon to see if Ted might be interested in running.

3.I see. 我明白了。

4.after all 毕竟，到底，究竟

例句:

After all, it was the father's place to bring up his son.

不管怎么说，教养儿子的事应该由父亲来作主。

5.have a try 尝试一下，试试看

例句:

It seems three good methods, I will have a try.

貌似不错的三种方法，改天我尝试下。