to fly quickly and suddenly downwards, especially in order to attack sb/sth （尤指为了袭击）向下猛冲，俯冲 SYN dive
The aircraft swooped down over the buildings.
飞机俯冲到那些建筑物上方。
(especially of police or soldiers 尤指警察或士兵) to visit or attack sb/sth suddenly and without warning 突然袭击；突击搜查；突然行动