(noun.) an essential and distinguishing attribute of something or someone; 'the quality of mercy is not strained'--Shakespeare.
(noun.) a degree or grade of excellence or worth; 'the quality of students has risen'; 'an executive of low caliber'.
(noun.) a characteristic property that defines the apparent individual nature of something; 'each town has a quality all its own'; 'the radical character of our demands'.
(noun.) high social status; 'a man of quality'.
(adj.) of high social status; 'people of quality'; 'a quality family' .
整理:希欧多尔
校对:尼古拉斯