一位老师

a teacher

→ 一
phrase Rare #27,524
a teacher 位 is a polite measure word used for people. In some contexts, 一位 can emphasize “one,” as in “not a single teacher.”
CH: 我想请一位老师帮忙。
EN: I’d like to ask a teacher for help.

我还找到当年一位老师她说七月小时候写作就很好

I also found one of her teachers from back then, who said Qiyue was already good at writing when she was little.

— SoulMate (2016)

这道题目没有一位老师会做。

Not a single teacher can solve this problem.

我认识那里一位老师

I know a teacher there.

— 美丽人生 (1997)

他说话就像一位老师。

He speaks like a teacher.