Give it a go=give it a try 意思是：试一试，试一把。

例句

1, I'm not so sure I'll be able to fix your skateboard,but let's give it a go and see if it works.

我不确定能把你的滑板修好，但试一试吧，也许能修好。

2,We'll only have 20 minutes left to finish that report,but let's give it a go.Maybe we can finish in time.

我们只有20分钟写完这份报告。可不管怎么说先试一试，没准我们能按时交活呢。