出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第102页（234字）
形容态度庄严稳重，例表面上看张三衣冠楚楚，不苟言笑，熟识之后才发现他是一个爱好运动且十分幽默的人。
One would never think that Zhang San，with his neat dress and reserved manner，is at heart a lover of sport and also extremely humorous．