underlayment是什么意思音标:英 [ɒndə'leɪmənt]美 [ˌʌndə'leɪmənt]

n. 地毯衬,屋面衬垫材料

n a pad placed under a carpet

underlayment的用法和例句：

1.You don't need a destination when you're running on an omnidirectional treadmill with quadraphonic, pressuresensitive underlay.

只要你脚下有一台 四声道压敏底垫全方位跑步机 你就可以随时出发

2.I could never understand what made people want to be friends, or what made people attracted to one another, or what underlays social interactions.

我一直无法理解是什么让人们想成为朋友 是什么让人们互相吸引 什么是社会交往的基础