(一). It's now or never.机会不会降临第二次? /现在不做就没机会了.

原音重现：

A: I'd like to ask Sue to marry me.

我想向苏求婚。

B: It's now or never. Go for it.

现在不去就没机会了，赶紧去吧。

(二).This is a huge I big / great I perfect opportunity. 这是一个非常好的机会。

原音重现：

A: My dad said I could have a job at his company.

我父亲说我可以到他的公司工作。

This is a huge opportunity for you to become successful.

这是你工作的的好机会。