客人的英文是：guest，visitor，customer
介紹客人英文案例如下：
1.正式場合:稱謂和姓名用 Dr./Professor/Mr,/Mrs/Ms./Miss/ + First Name 和Last Name。如:
向地位較高的已婚女士介紹男士時可說
Mrs. Carton, May I introduce James Harding. James, this is Mrs. Roger Carton(or Mrs.Jane Carton).卡爾頓夫人,請讓我介紹詹姆斯·哈定。詹姆斯,這位羅傑·卡爾頓夫人(或:簡·卡爾頓夫人)。
向年長者介紹年輕的女士時可說
Mr. Brown, this is Miss Patricia Haley. Patty, this is Mr. Edgar Brown."布朗先生，這位是帕特麗夏·哈利小姐。帕蒂，這位是埃德加·布朗先生。
向長者介紹年輕的男士時可說
Mr Baker this is Robert Green. Robert, this is Mr John Baker.貝克先生，這位是羅伯特·格林.羅伯特，這位是約翰·貝克先生。
客人的英語實用場景例句：
She checked the seating arrangements before the guests filed into the dining-room.
Hotels operate a collection service for their guests from the airports.
The subject came up during a pre-dinner drink with our guests.
Guests bopped and jigged the night away to the disco beat.