“用枪搜索捕杀”可以翻译为 “search and hunt down with guns” 或者 “conduct a search-and-kill operation using guns” 。前者更侧重于描述行为动作，后者则更正式地表达出这是一种有组织的行动。
例如：
The poachers were searching and hunting down endangered animals with guns in the protected area.（偷猎者在保护区用枪搜索捕杀濒危动物。）
The security forces conducted a search-and-kill operation using guns to root out the terrorists.（安全部队用枪开展搜索捕杀行动，以根除恐怖分子 。）