1.Every plainclothesman carried a pistol for use in an emergency.
每个便衣刑警都携带了手枪以在紧急情况下使用。
2.The plainclothesman keeps an alert eye on every passer by.
翻译那个便衣刑警警惕地注视着每一个路人。
3.An Investigation and Practice in the Plainclothesman Patrol in Rui'an City
便衣巡逻在瑞安的探索与实践