verb, noun, measure word, punctuation · one's profession, employment, or a specific task to be completed

我最近很忙，有很多工作要做。

verb, punctuation, noun, pronoun, measure word, particle · to perform labor or be employed in a job

他在一家银行工作。

verb · to function or run (referring to a machine, system, or organ)

这台机器已经连续工作了十小时。