Their daily work is to refine crude oil.
他们每天的工作是精炼原油。
His behaviour and manners have been refined.
他的行为和仪态变得很文雅。
They refined their original design.
他们改进了他们原来的设计。
vt.refined.refining
英汉双解词典包含483723条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。