挑战者

• challenger
• defier

例句

1. 挑战者的技术太差了，连一拳也没有击中对方。
   The challenger was so outclassed that he couldn't get a single blow in.
2. 虽然挑战者道德使对方受伤，但他似乎很容易被击败。
   The challenger seemed to be outclassed, although he was the first to let blood.
3. 拳王站在打击得到的距离内，给挑战者一记重击。
   The champion, within striking distance, gave the challenger a severe blow.
4. 下星期冠军将迎战挑战者。
   The champion and the challenger meet next week.

短语

• 敌手
• 对手
• 敌