plain clothes
noun [ plural ] uk/ˌpleɪn ˈkləʊðz/ us/ˌpleɪn ˈkloʊðz/
便衣
ordinary clothes when worn by police when they are working
There were police in plain clothes in the crowd. 人群中有便衣警察。
江苏热线英汉汉英双解词典包含207361条英汉翻译词条,涵盖了常用英语单词及词组短语的翻译及用法,是英语学习的必备工具。