我们的足球队下周将对阵市冠军队。

Our soccer team is playing ___against the city champions next week.

在那场网球比赛中，她将对阵头号种子选手。

In the tennis match, she will compete ___against the number one seed.

他在辩论中为自己的论点与其他学生进行了对抗。

He argued his case ___against the other students in the debate.