SWAT team
/swɒt/noun
1- (in the US) a group of elite police marksmen who specialize in high-risk tasks such as hostage rescue（美国）特警小队（一组精锐警察部队神枪手, 专从事高风险任务, 如解救人质等）。
1.1
- any group of specialists brought in to solve a difficult or urgent problem解困救急专家组。
词源
1980s: acronym from Special Weapons and Tactics.