Hardpan
n. 硬质地层, 未开垦的硬地, 粘土层
🗣️ 情景例句
The school was attended almost entirely by local children.
上这所学校念书的几乎全是当地的孩子。
I'm always disappointed when I don't get any mail.
当我收不到任何邮件时，我总是很失望。
and are capable of a considerable degree of personal affection.
而且会对主人产生相当深厚的私人感情。