Underlayment
n. 地毯衬,屋面衬垫材料
🗣️ 情景例句
I'll go upstairs and stay with him until he falls asleep again.
我上楼去陪他， 直到他又睡着。
Adversity makes a man wise,not rich.
患难能使人聪明，但不能使人富有。
Our village is in a valley.
我们的村庄坐落在一个山谷之中。