adversary
US /ˈæd.vɚ.ser.i/
UK /ˈæd.vɚ.ser.i/

名词
1.
对手, 敌手
one's opponent in a contest, conflict, or dispute
示例:
•
He faced his old adversary in the final round.
他在最后一轮面对他的老对手。
•
The two nations have been adversaries for centuries.
这两个国家几个世纪以来一直是对手。
在 Lingoland 学习这个单词