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He put all the files into his briefcase. 他将所有文件都装进公文包。
My briefcase was beginning to gather dust. 我的手提箱不怎么使用了。
He carried a leather briefcase embossed with his initials. 他带着一个饰有浮凸的姓名首字母的皮公事包。
He began to unpack his briefcase. 他开始打开公事包取出里面的东西。
The workers are installing a heating system. 工人们正在安装供暖系统。
briefcase installing 公文包安装
The act of installing such a device. 装设窃听器安装搭线窃听装置的行为
They knocked him down and robbed him of his briefcase. 他们把他打倒在地，抢走了他的公文包。
Bruce stuffed a mass of papers into his briefcase. 布鲁斯把许多文件都塞进了他的公文包里。
He carried the fat briefcase in his left hand. 他左手提着那只鼓鼓囊囊的皮包。
He locked the papers in the briefcase. 他把文件收进公事包。
She always carries an umbrella in her briefcase. 她总是在公事包里带着一把伞.
He popped a letter out of his briefcase. 他从公文包里突然掏出一封信。
We're installing a new heating system. 我们正在安装新的取暖装置。
The briefcase bulged with papers. 公文包装满了文件。
He unclasped his briefcase and took out his notes. 他打开公文包拿出记事本。
Before installing needs cleaning tube,remove filth. 安装前需清洗管路、除去污物。
I went to work minus my briefcase. 我在没有公文包的情况下去上班
The workers are installing a machine in a factory . 工人们正在工厂里安装一台机器。
She is just installing the doing manners. 她正装做有礼貌。