refined

a. 精炼的,优雅的,精细的
v. 精炼,净化,使...优雅
vbl. 精炼,净化,使...优雅

She's so refined that she always eats cake with a little fork.

她非常文雅，吃蛋糕一定用小叉子。

The oil will be refined.

这些石油将被精炼。