Underdrainage
n. 暗渠排水, 地下排水
🗣️ 情景例句
My mom's decorating it right now.
我妈妈正在淋奶油。
I'm coming.
我来啦。
She stood three feet high and her hands rested on her hips.
她身高3英尺，双手叉腰。