hardpan

hardpan

['hɑ:dpæn]

n. 硬质地层, 粘土层, 砂砾层

例句与用法：

A stone once believed to be impenetrable in its hardness.

硬石，金刚石一种曾被认为在硬度上不可穿透的石头

Despite the hardness of his bed, he is soon sleeping soundly.

虽然床很硬，他还是很快地睡熟了。

I can't open the door with hardness of stone.

我不能打开那扇石门。

Their hardness was understood by the teacher.

他们的艰难得到老师的理解。

---

n.

1. 硬质地层; 坚硬地面

2. 基础; 最低点