语法总结
现在分词作伴随动作
Working rapidly... / jumping into the car... 让动作推进更紧凑。
相似句：
- Running across the road, he dropped his bag.
- Smiling politely, she opened the door.
dressed in / with 的状态补充
dressed in a uniform and with a rifle... 组合起来描写人物外观非常有效。
相似句：
- He stood there dressed in black.
- She entered with a book in her hand.
过去完成时交代更早背景
they had just discovered... 把营地里发生的事放到主线之前。
相似句：
- They had already left when we arrived.
- The news had spread before dawn.