n.公文包，公事包

原形：briefcase复数：briefcases

I was in such a hurry that I left my briefcase at home.
我太匆忙了,以致于将公事包留在家里.
The briefcase was filled with papers.
公文包里装满了文件。
He put all the files into his briefcase.
他把所有文件都装进公文包。
He carried his briefcase to the office, filled with important documents.
他带着装满重要文件的公文包去办公室。
She placed her laptop and files in her new leather briefcase before leaving for the meeting.
她在开会前将笔记本电脑和文件放入新皮质公文包。
The lawyer arrived at court with a sleek black briefcase, exuding professionalism.
律师提着黑色的高级公文包走进法庭，展现出专业形象。
A businessman handed out business cards from a custom-designed briefcase during a networking event.
一位商人在一个商务活动中，从定制的公文包里分发名片。
She opened her old briefcase, revealing a trove of forgotten notes and receipts.
她打开旧公文包，里面露出一堆被遗忘的笔记和收据。
The intern carefully packed his laptop and charger into the company-provided briefcase.
实习生小心翼翼地把笔记本电脑和充电器放进公司配发的公文包。
The detective's briefcase was always brimming with clues and evidence from his latest case.
侦探的公文包总是塞满了他最新案件的线索和证据。
She bought a lightweight aluminum briefcase to make traveling more comfortable.
她买了一个轻便的铝制公文包，以便旅行时更轻松。
The entrepreneur used his briefcase as a portable office, carrying a printer, scanner, and projector inside.
这位企业家用他的公文包打造了一个便携式办公室，里面装有打印机、扫描仪和投影仪。
After a long day at work, he finally closed his worn-out briefcase, ready for a well-deserved rest.
忙碌一天后，他终于合上了破旧的公文包，准备好好休息一下。