commander
/kəˈmɑ:ndə(r); ?@ -ˈmæn-; ˌkə`mændɚ/ n
1 person who commands 指挥官; 司令; 队长
the commander of the expedition 探险队队长.
2 (Brit)
(a) officer in the British Navy immediately below the rank of captain 海军中校. =>App 9 见附录9.
(b) officer of high rank in London's Metropolitan Police （伦敦警务处的）高级警官.