英语高手帮忙翻译一下 不胜感激！

Question

我保证大学毕业以后留在中国，用自己所学，为中国的发展尽自己的一份力量！

Answer 1

I promise I would stay in China when graduated from university, and make great effort of do my part for China with all my own learned.
呵呵 你不会要申请留学吧？ 无论如何 祝你好运 希望能帮到你

Answer 2

我保证大学毕业以后留在中国，用自己所学，为中国的发展尽自己的一份力量！
I promise to stay in China and do my bit to the development of our country with my knowledge and skills after I graduate from university.

尽到自己一份力量 do one's bit

承诺做某事 promise to do sth. / swear to ...

Answer 3

I promise to stay after graduating from university in China, with their own learned for China's development to do their part!

Answer 4

I promise I will stay in China when I graduated, and do my bit to the development of our country with my knowledge

Answer 5

I promise i'll stay in China after graduating from university,using what i've learned to make contribution to China's development.

Answer 6

I promise to stay in china after graduation.Using what I learned to do my bit to china's development.