Give it a try.

试试看。

Go for it.

去试试吧。

Have a go at it.

你来试一试。

It won't hurt you to try it.

你不妨试试。

It's going to be hard, but give it your best shot.

事情会很难，你尽力而为就是了。

Come on. You can do it!

来吧，你能行！

Go for the first prize! I know you are good enough.

争取拿头奖,我知道你行。

Let's see some action!

赶快行动起来吧！

Let' s have a go at it.

我们去试试。

There can be no harm in your trying.

你试试没有坏处。