这位先生似乎那时正在等医生。

It seems this gentleman was waiting for the doctor.

《柯林斯英汉双解大词典》

那这位先生呢？

What about the gentleman?

youdao

这位先生长什么样？

What did the gentleman look like?

youdao

Gentleman you will have to come and do this as you would like to have it done.

这位先生,你上来调整一下,调到你觉得合适的位置吧

耶鲁公开课 - 聆听音乐课程节选

Okay. Now this gentleman out here is actually doing it different from what I am doing and what most of you are doing but you know what? He's doing it correctly.

这位先生,和我做的不太一样,甚至和在座各位做的不太一样,但你知道吗,他做的是对的

耶鲁公开课 - 聆听音乐课程节选

So this gentleman here who's name is Andy.

那么这位先生,名字是安迪

耶鲁公开课 - 博弈论课程节选