This is the 2440th most frequent Chinese word.
局长
Director or Chief of a bureau.
In this sentence, '局长' is used as a title referring to a person who is the chief or head of a bureau, indicating their position of authority.
局长正在办公室工作。
The bureau chief is working in the office.
Here, '局长' functions as the designation of the individual who has the authority to receive reports and make decisions about the project.
我们向局长汇报了项目的进展。
We reported the project's progress to the bureau chief.
In this usage, '局长' identifies a specific office-holder, emphasizing their role in advocating and implementing policies within the bureau.