Undersole
大底, 鞋底
🗣️ 情景例句
I'd love to, Philip, but I'm afraid I can't.
我很想， Philip ，但是恐怕不行。
Scratch a Russsian, and you('ll) find a Tartar.
文明不能改变本性。
A sound made by tapping on the hull of a ship will be reflected from the sea bottom,
敲打船体所发了的声音会从海底传回来，