她正躺在垫子上放松。

She is relaxing on the ___mat.

我在门口放了一块防滑垫。

I put a non-slip ___mat at the entrance.

摔跤运动员在训练前仔细检查了垫子是否牢固。

The wrestler carefully checked the ___mat for stability before practice.

她不得不花很长时间梳理那些打结的头发。

She had to spend a long time combing out the ___mats in her hair.