n.勇气；气质；性格
This is the first assault on the new world we seek, the first test of our mettle. 这是对我们所寻求的新世界的第一次攻击，也是对我们勇气的第一次挑战。
These were spirited men, men of character and mettle. 这些都是有骨气的人，有特殊性格和气质的人。
These were spirited men, men of character and mettle. 这些都是有骨气的人，有特殊性格和气质的人。
Featuring exhilarating gameplay, stunning visuals and special logic challenges that will test your mental mettle, Enchanted Cavern is a journey the entire family will enjoy! 游戏会让玩家体验刺激的感受，惊人的视觉效果，以及考验性格的特殊的逻辑挑战，这也是一款全家人都会喜爱的游戏！
adj.精神抖擞的
