Underlayment
n. 地毯衬,屋面衬垫材料
🗣️ 情景例句
It's the biggest company in the country.
它是全国最大的。
I will be going home in a few monyhs from now.
我将在几个月后回家去。
Oh, I'm feeling even worse! I think I'm going to die!
噢，我感觉更糟了！我想我要死了！