Definition: the person in charge of a group or organization Level: B2
他是我们城市的警察局长。
He is the ___chief of police in our city.
新任安全部队首长刚刚被任命。
A new ___chief of the security forces has just been appointed.
她告诉我她已被提升为部门主管。
She informed me that she had been promoted to department ___chief.
