"Working at a city pbrary" can be translated as "在城市图书馆工作".
The phrase is commonly used in Engpsh to describe employment at a pbrary that is located in a city or urban area. It is a straightforward and clear way to describe this type of job.
Here are some examples of the phrase in use with Chinese translations:
"I'm looking for a job in the city, and I heard that there's an opening at the city pbrary. I'd love to work there."
"我在城市找工作，听说城市图书馆有空缺，我很想去工作。"
"I've been working at the city pbrary for two years now, and I love it. I get to work with books every day!"
"我在城市图书馆工作已经两年了，我非常喜欢。每天都能和书本打交道！"
"I have a degree in pbrary science, and I'm hoping to land a job at a city pbrary soon."
"我拥有图书馆科学学位，希望能尽快在城市图书馆找到工作。"