卧底鬼-影画Undercover Agent - Movie

卧底一词始于唐 卧伏不同于睡眠 卧时头脑仍警醒 故称细作卧底鬼 为了保密说隐语 常说切口和黑话 深藏不露当内应 假戏真做为间谍 The term "undercover agent" originated in the Tang Dynasty. Lying prone is different from sleeping; while lying down, the mind remains alert, hence the term "spy." To maintain secrecy, they use coded language, often employing secret phrases and slang. They remain hidden, acting as inside agents, and their actions become increasingly realistic, making their roles as spies even more real.