请帮忙给出正确答案和分析，谢谢！
He has proved his courage in the battle.（英译中)
He has a pain in the knee.（英译中)
He has a mild nature.（英译中)
He has been here in London for many years.（英译中)
The English language has an interesting history.（英译中)
He has gained rich experience in these years.（英译中)
冀公网安备 13070302000102号
答题翼app下载