我们必须现在行动，机不可失。

We must act now, it's now or never.

这次机会对我们来说机不可失。

This chance for us it's now or never.

你要明白，这种好事机不可失。

You need to understand, such good things it's now or never.

这个机会机不可失，你一定要抓住。

This opportunity it's now or never, you must seize it.

他告诉我，机不可失，所以我决定冒险一试。

He told me, it's now or never, so I decided to take the risk.

机不可失，时不再来。

It's now or never.

机不可失, 时不再来!

Now ( in the time ) or never !

机不可失，时不再来。

Do it now.

机不可失,失不再来.

A mill cannot grind with the water that is past.

机不可失，时不在来。

Take time when time comes lest time steal away.