汉译英一个中文句子，谢谢！急！！

How can you know the result if you did not actually do.

You will never get the result if you don't try it seriously.
You will never get the result until you try it seriously.

you'll not kown the result unless you try it

If you don't know what you are going to do, you might just as well pack up.

you willnot kown the result unless do it youself

Nothing venture, nothing have.不入虎穴,焉得虎子. 按字面直译就是什么都不冒险,什么都得不着. 怎么样,意思差不太多吧