文章的脉络很清晰。
The article's structure is very clear.
arteries and veins; network of blood vessels; vascular system (of a plant or animal)
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
Nice writing!
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
文章的脉络很清晰。
The article's structure is very clear.
小说的脉络越来越复杂。
The novel's plot is getting more complex.