求这几句中文的英文翻译.不要机译!!!

Please keep smiling to the end. I wil be happy if you are happy. Please don't be sad while I am away. Just think I am in your heart.

Please walk to the ending of this story with smile. I am happy because you are happy. Don't be sad even if I leave. Just feel as if I were still in your heart.

Please go to the end with smile.I am happy because you are happy.Don't be sad even I left.Please place me in your mind.

Please be happy to the last.I'll be very happy just because you are happy.Don't be sad although I leave you.Treat it as I'm still in your heart.
这确实是我自己翻的，水平不太高~见谅~
呵呵！~

keep smile and go to the end please.i m very happpy because you are very happy.please don't upset too much even if i m gone.just think i m always in your heart.

please keep smiling in the rest of your life.i am happy because of your happiness.please do not be sad ,as you know,i will always be with you even if i left.