花木蘭的故事英文版如下：
Once upon a time in a kingdom, there was a brave warrior named Mulan. She was a woman in disguise who longed to prove herself in battle. One day, the king called for all able-bodied men to join the army to defend the kingdom from an invading army. However, Mulan's father was too old to fight, so she took his place. She disguised herself as a man, joined the army, and became an outstanding warrior. Together with her comrades, she fought bravely against the invaders and successfully defended the kingdom. In the end, she was awarded the honor of being named the "Bravest Warrior of the Year" and returned home a hero. Although she was a woman, Mulan proved that courage and strength were not limited to men.
以上就是花木蘭的故事英文版，希望對您有所幫助！