Hardpan
n. 硬质地层, 未开垦的硬地, 粘土层
🗣️ 情景例句
Mr. Stewart.
Stewart先生。
You'll hurt your thumb, if you don't take care.
你不专心的话，就会伤到你的拇指。
We'll have to talk it over some more.
这个我们还得再谈一谈。