matrass

例句：

1. 1. The stable is where the horses are kept.
   马厩是马匹被饲养的地方。
2. 2. She bought a new mattress for her bed.
   她为床买了一张新床垫。
3. 3.The horse was matted and had to be brushed.
   那匹马被毛蓬乱了，需要梳理。