Hardpan
n. 硬质地层, 未开垦的硬地, 粘土层
🗣️ 情景例句
If we land a man on the moon, I think someone could surely invent a toaster that works properly.
如果我们能让人类登陆月球，我想一定会有人能发明在月球上还能正常运行的烤面包机。
Don't you care about this country's future?
难道你不会国家首任担忧吗？
There is a chair below the window.
窗户下面有一把椅子。