Underlayment
n. 地毯衬,屋面衬垫材料
🗣️ 情景例句
I don't know if I can get to sleep.
我不知道我能否睡得着。
By accident Marion overheard some nasty gossip.
马里恩偶然听到了一些令人不愉快的谣言。
The leader of the party was examining the soil near the entrance to the cave when the machine showed that there was gold under the ground.
当这个队的队长正在检查洞口附近的土壤时，那台机器显示出它的下面埋有金子。