"同什么比赛" 在英文中可以表示为 "compete with" 或 "compete against"。
"Compete" 来源于拉丁语 "competere"，意思是 "strive, contend"。"With" 和 "against" 分别表示 "与...一起" 和 "对抗"。
例句：
We will compete against the other team in the championship game. (我们将在冠军赛中与另一支队伍竞争。)
She competes with herself to try to improve her personal best time. (她与自己竞争，以尝试提高自己的最佳时间。)