bedspring

详细解释:n. 床垫的弹簧
【电】 床簧

英语解释：

名词 bedspring:

(usually plural) one of the springs holding up the mattress of a bed

详细解释：

bed.spring

n.（名词）
One of the springs supporting the mattress of a bed. Often used in the plural.
床座弹簧：支撑床垫的弹簧。常用在复数中