杀手

例句：

1. 1. The police are hunting for the murderer of the missing child.
   警方正在追捕失踪儿童的凶手。
2. 2. He was a skilled assassin who had killed many people in his line of work.
   他是一名技艺高超的刺客，在他的工作领域里杀死了许多人。
3. 3. The movie is based on a true story about a professional assassin.
   这部电影是根据一名职业杀手的真实故事改编的。