The White House Chief of Staff is the highest ranking member of the executive office of the president of the United States.

白宫办公厅主任,是美国总统的,行政办公室当中,职位最高的人员。

普林斯顿公开课 - 国际座谈会课程节选

Some WHCF even behaved a little that way, although I think relatively few.

有的办公室人员行为有点那样，虽然我想只有少数人是那样。

普林斯顿公开课 - 国际座谈会课程节选