1·He was carrying a briefcase.
他提着公文包。
—— 《柯林斯英汉双解大词典》
2·I traced the course of the river on the map spread out on my briefcase.
我在自己公文包上铺展开的地图中勾画出了这条河的流向。
—— 《柯林斯英汉双解大词典》
3·He shifted uncomfortably on his feet. In doing so he knocked over Steven's briefcase.
他不自在地变换着站姿。在这过程中，他碰倒了史蒂文的公文包。
—— 《柯林斯英汉双解大词典》
4·But how did you lose your briefcase?
但你是怎么弄丢你的公文包的？
5·He looks like any other businessman, wearing a suit and carrying a briefcase.
他看起来跟其他商人一样，身着西装，带着一个公文包。