as a title of courtesy before a man's Christian name, mid-15c., unaccented variant of master. As a form of address, without a name and with a tinge of rudeness, from 1760.
权威例句
1. " Mr " is the abbreviation of " Mister ".
“ Mr ” 是 “ Mister ” 的缩写.
2. Mister, can we 'elp to carry yer stuff in?
先生,要我们帮您把行李拿进去吗?
3. "That's right, mister," another child piped up.
“没错,先生,”另一个孩子突然说道。
4. Please, mister, can we have our ball back?
求求你,先生,能把球还给我们吗?
5. At the moment I'm only a mister, but I'll be a professor.