manhunt
noun [ C ] uk/ˈmæn.hʌnt/ us/ˈmæn.hʌnt/
（尤指对罪犯的）搜捕，追捕
an organized search for a person, especially a criminal
The police have launched a manhunt after the body of a six-year-old boy was found last night. 昨晚发现一具6岁男孩的尸体后，警方已展开搜捕行动。