Sectored
部门；领域；防御地区；扇形
🗣️ 情景例句
He missed a phone call.
他没接到一通电话。
I still need three more credits in Psych; maybe I'll take Ed Psych this term.
心理学我还需要三个学分。或许我在本学期修教育心理学。
OK.
好吧！