'You really think you can do that?' 'I'm going to have a try.'

你真的认为你能做到吗 我要试一试

I'd like to have a try.

我想尝试一下。

Why don't you have a try at convincing him?

为什么你不试试说服他？

You can mock, but at least I'm willing to have a try!

你可以嘲笑我，但我至少愿意试一试。

Let her have a try, and look after her.

让她试一试，看着她点。

Have a try on.

试穿一下吧。