Underdrainage
n. 暗渠排水, 地下排水
🗣️ 情景例句
Next time you are in town, drop me a line.
下次你在城里的时候给我写信吧。
Knowing something of everything, and everything of something.
通百艺而专一长。
The dish now had to be lifted vertically because one edge was resting against the side of the canal.
这次，盘子必须垂直吊出水面，因为盘子的一边紧靠着运河河岸。