n. （生活）风雅; 精炼( refinement的复数形式 ); 改良品; 细微的改良; 优雅或高贵的动作
英文释义
n. a highly developed state of perfection; having a flawless or impeccable quality
n. the result of improving something
n. the process of removing impurities (as from oil or metals or sugar etc.)