语法总结
过去进行时作背景
who was shouting... and waving... 把醉汉挑衅公牛的背景动作写得很具体。
相似句：
- The boy was laughing and waving his arms.
- She was standing by the door when I saw her.
seem to / seem + adj.
seemed quite sure of himself 用 seem 写出外在印象，不代表他真的清醒或有把握。
相似句：
- He seemed very calm at the time.
- The plan seemed impossible at first.
to let it pass 的目的表达
step aside to let it pass 用不定式说明动作目的，很适合写紧急避让。
相似句：
- He moved back to let the car pass.
- She opened the door to let them in.