mattress
n. 床垫，褥垫；（工程）垫层，沉排，钢筋网
复数 mattresses
例句
The mattress is best on a solid bed base.
床垫最好放在结实的床座上。
《柯林斯英汉双解大词典》
He crouched down and reached under the mattress.
他蹲下来，把手伸到了床垫下面。
The mattress and base are normally bought as a set.
床垫和床基通常成套购买。
