坚硬 (jiān yìng): Hard (Adjective) — Meaning & Stroke Order

This stone is very hard.

He has a hard heart and never gives up easily.

Why is this seemingly ordinary piece of wood so hard that it can even resist the chop of an axe?

Despite its hard exterior, its heart is not cold and unfeeling.

The hardness of this material is sufficient to withstand great pressure.

He is not only hard in character but also firm in will, always able to overcome numerous difficulties.