mid

这款耳机定位中端市场，价格适中。

These headphones are designed for the ___mid market with reasonable pricing.

这个班级的成绩处于年级的中等水平。

The class's performance is at the ___mid level in the grade.

这款游戏还行吧，不算特别好也不算差。

This game is just ___mid, not great but not terrible either.