Mr
abbreviation (British English)(also Mr. North American English, British English)
a title that comes before a man’s family name, or before his first and family names together （用于男子的姓氏或姓名前）先生 Mr Brown 布朗先生 Mr John Brown 约翰 · 布朗先生 Mr and Mrs Brown 布朗先生和夫人
a title used to address a man in some official positions （用于称呼要员）先生 see also mister
Word Originlate Middle English: originally an abbreviation of master; compare with mister.