Undersurface
n. 下面, 底面\\na. 水面下的
🗣️ 情景例句
So, what were you two talking about?
你们俩刚才谈什么了？
When are you off?
你什么时候动身？
Goodness! Now I see what you're talking about.
天哪！现在我明白你在说什么了。