以下是一些关于“奋斗吧少年”的英文短句：
1. Struggle, young man!
2. Keep fighting, youngster!
3. Work hard, young chap!
4. Keep striving, young one!
5. Go for it, kid!
6. Never give up, boy!
7. Fight on, young man!
8. Keep pushing, youngster!
9. Keep going, young one!
10. Keep up the good work, kid!
这些英文短句表达了鼓励和激励的意思，希望少年们能够努力奋斗，追求自己的梦想。
