a network of veins

• 脉络

a network of veins的用法和样例：

例句

1. Two cases of central retinitis were recorded here.
   例举中心性视网膜脉络膜炎验案两则以证之。
2. I must have skipped a page, because I lose the thread of the story.
   我一定跳过了一页，因为我弄不清故事的脉络了。