Underdrain
n. 阴沟, 地下沟道, 盲沟, 暗渠
🗣️ 情景例句
Don't you love the warm weather?
你不喜欢温暖的天气吗？
I told him to come in while waiting.
我告诉他进来等一下。
What does she have to do?
她得做什么？