bedding cleavage

例句：

1. 1. The old bedwas in such a state that it neededto be replaced with a new one.
   那床旧得不行了，需要换一张新的。
2. 2. She carefully folded the sheets and tuckedthem under the mattress for extra support.
   她小心地折叠床单，把它们垫在床垫下面以增加支撑。
3. 3. Themattress had a noticeable crease running down its center,indicating poor quality construction.
   床垫中间有一条明显的折痕，说明建造质量不好。