他具有某种魅力。

He's got ___a ___certain charm.

她的眼中仍闪烁着那种光芒和某种骄傲。

There was still that gleam and ___a ___certain kind of pride in her eyes.

那栋老房子有种神秘感。

There was ___a ___certain air of mystery about the old house.