Tra từ chief of staff - Từ điển Oxford Advanced Learner 8th

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Từ điển Oxford Advanced Learner 8th

chief of staff ˌchief of ˈstaff [chief of staff] BrE NAmE noun (pl. ˌchiefs of ˈstaff) an officer of very high rank, responsible for advising the person who commands each of the armed forces see also ↑Joint Chiefs of Staff