A:I want to try my hand at the slocks.

A：我想试试搞股票。

B:It's very hard, you know.

B：要知道，那是很难的。

A:Don't worry. I know there are no pennies from heaven, I'll work hard.

A:别担心，我知道没有天上掉馅饼的好事，我会努力工作的。

B:Good luck!

B：祝你走运!