Shadow puppets are made of hard leather.

皮影由硬质皮革制成。

Her boots and stockings followed the skirt, for the bare sole of the human foot does not slip upon dry or even wet bark as does the hard leather of a boot.

她的靴子和长袜跟在裙子后面，因为人的脚底不会像靴子的硬皮那样在干燥甚至潮湿的树皮上打滑。