有一位先生想和他的妻子坐在一起。

A man would like to sit with his wife.

youdao

纸上写道：“昨晚，一位先生不小心把意想不到的东西放进了我的帽子里。请过来取吧。”

The paper said, "Last night, a gentleman put something unexpected into my hat by mistake. Please come to get it."

youdao

我正不顾一切地要勇敢地去抓住它，这时我身后的一扇窗户打开了，一位先生的声音从里面传出来，说：“请到这儿来。”

I was just getting desperate enough to brave all the shame, and to seize it, when a window behind me was raised, and a gentleman spoke out of it, saying: "Step in here, please."

youdao

Mr. Fahrenheit, Daniel Gabriel Fahrenheit was a German instrument maker.

华伦海特先生，尼尔，加布里埃尔，华伦海特,是一位德国仪器制造师。

麻省理工公开课 - 热力学与动力学课程节选

It was implanted into the first patient, a gentleman in Kentucky, and he stayed alive for a period of time with this device replacing his heart.

第一个植入这个人工心脏病人是,住在肯塔基州的一位先生,他在移植手术后,存活了一段时间

耶鲁公开课 - 生物医学工程探索课程节选