◎ 素不相识 sùbùxiāngshí[did not know sb. before;be never acquainted with each other] 向来不认识他们俩素不相识,一见面竟成了好朋友-----------------国语辞典：向来不认识、不熟悉。《三国志．卷五七．吴书．陆瑁传》：「及同郡徐原，爰居会稽，素不相识，临死遗书，托以孤弱。」《西游记．第四回》：「众天丁又与你素不相识，他怎肯放你擅入？」近素昧生平
不施脂粉而朝见皇帝。 -----------------国语辞典：唐代杨贵妃的妹妹虢国夫人常常不敷脂粉即朝见天子的故事。见宋《乐史．杨太真外传．卷上》。英语 lit. to present oneself confidently to the emperor, without makeup (as did the sister of Yang Guifei 楊貴妃|杨贵妃[Yang2 Gui4 fei1]) (idiom), fig. (of a woman) to show one's natural features, without makeup, to present oneself just as one is, without artifice
◎ 素餐 sùcān(1) [vegetarian meal]∶没有鱼肉等,只有瓜果、蔬菜等的饭食(2) [be a vegetarian]∶吃素(3) [eat the bread of idleness;be not work for one’s living]∶不劳而食,多指无功受禄尸位素餐-----------------国语辞典：无功劳而空享俸禄。《诗经．魏风．伐檀》：「不稼不穑，胡取禾三百廛兮，不狩不猎，胡瞻尔庭有县貆兮，彼君子兮，不素餐兮。」《后汉书．卷五七．谢弼传》：「今之四公，唯司空刘宠断断首善，余皆素餐致寇之人。」也作「素食」。