意气风发的

She's a mettlesome opponent, never giving up even when the odds are against her.
她是个坚韧不拔的对手，即使面对不利局面也从不放弃。
The young horse proved to be quite mettlesome, requiring an experienced rider to handle it.
这匹年轻马证明了相当有活力，需要经验丰富的骑手来驾驭。
His mettlesome spirit inspired his team to work harder and achieve their goals.
他的顽强精神激发了团队更努力工作，实现了他们的目标。
The startup's mettlesome approach to innovation earned them a place in the industry's top tier.
创业公司的大胆创新策略使他们跻身行业顶级行列。
The mettlesome athlete pushed through the pain and completed the marathon.
这位勇猛的运动员忍受着痛苦，完成了马拉松比赛。
Despite the challenges, the mettlesome entrepreneur continued to pursue her dreams.
尽管面临挑战，这位勇敢的企业家仍坚持不懈地追求她的梦想。
The mettlesome journalist refused to back down in the face of pressure from powerful sources.
这位坚韧的记者面对权势的压力毫不退缩。
With mettlesome determination, the team overcame their losses and won the championship.
队伍以坚定的决心克服了失败，赢得了冠军。
The mettlesome survivors of the disaster demonstrated incredible resilience and strength.
灾难中的幸存者展现出令人难以置信的坚韧和力量。
The mettlesome activist led the fight for social justice, undeterred by threats or obstacles.
这位勇敢的活动家领导了争取社会公正的斗争，对威胁和障碍无所畏惧。