这是问题的实质。
This is the essence of the problem.
实质
substance; essence
Watch it being written
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
实
质
Nice writing!
Build with these blocks
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
实
See it in sentences
实质上他是对的。
In essence he is right.