vt.使变稀少；使变纯净
vi.变稀薄
=rarify.
The rarefied fluid said to run in the veins of the gods. 灵液诸神血管里流动着的稀有液体
He moves in very rarefied circles; his friends are all lords. 他活动于上流阶层，结交的尽是贵族。
抽稀
