decorum: suggests conduct that is in accordance with good taste or with a code of rules governing behavior under certain conditions: had failed to exhibit the ~ expected of an army officer.  


decency: implies behavior consistent with normal self-respect or humane feeling for others, or with what is fitting to a particular profession or condition in life: maintained a strict ~ in dress.  


propriety: suggests an artificial standard of what is correct in conduct or speech: regarded the ~ expected of a social matron as stifling.      social matron社交名媛、社交贵妇，已婚


dignity: implies reserve or restraint in conduct prompted less by obedience to a code than by a sense of personal integrity or status: conveyed a quiet ~ and sincerity that won him respect.  


etiquette: is the usual term for the detailed rules governing manners and conduct and for the observance of these rules: the ~ peculiar to the U.S. Senate.


decorum得体: 泛指符合品味规则，decency体面: 指符合自尊、人情和职业等，propriety礼节规范: 表示人为规定的标准，dignity尊严: 做事矜持节制，能体现品格身份，etiquette礼节: 术语，指言行举止方面的规则


记忆方法: 1）首字母记忆DDDPE, PE(physical education)是体育培养人的体魄体态，三个D想成得得得<==很得体育

         2）得体的意思是符合举止规范mean observance of the rules governing proper conduct.        conduct表示举止时，强调有自我控制和引导能力，而behave表示举止时强调符合标准、恰当得体，两个词在2017-05-25 举止behave-acquit组