Plain clothes
n. 便衣, 便服, 便衣警察; 便装
📖 牛津释义
plain clothes
(esp of police officers), ordinary clothes, not uniform （尤指警察的）普通衣服, 便衣
The detectives were in plain clothes. 警探穿著便衣. `plain-clothes adj wearing plain clothes 穿便衣的
a plain-clothes detective 便衣侦探.
🧩 词语组成解析
plain
[plein]
n. 平原;平地;[纺织业]平针;朴实无华的东西;
adj. 平的;素的;清晰的;相貌平平的;
adv. 清楚地，明白地;平易地;[用以加强语气]显然;完全地;
vi. 发牢骚;诉苦;
clothes
[kloðz]
n. 衣服，衣物;寝具;
v. 穿（衣）( clothe的第三人称单数);给…提供衣服;（用语言）表达;覆盖;
🗣️ 情景例句
Where'd you spend your vacation?
你在哪儿度的假？
I've been here for three weeks, and so far I've enjoyed it.
我已经在这里逗留了三个星期，到现在为止，我过得很好。
One day, Mrs. King asked Lucy to go shopping for her.
一天，金太太叫露西帮她去买东西。