数学俱乐部举办了一场书呆子对决，看谁能最快解开复杂方程。

The math club held a ___nerd-off to see who could solve complex equations the fastest.

他们俩在游戏厅里开始了一场关于谁更懂复古游戏的比拼。

They had a ___nerd-off at the arcade about who knew more about retro games.