flashback
noun uk/ˈflæʃ.bæk/ us/ˈflæʃ.bæk/
C2 [ C or U ]（电影、故事或戏剧的）闪回，倒叙
a short part of a film, story, or play that goes back to events in the past
The novel began with a flashback to the hero's experiences in the war. 小说开头以倒叙的手法描写了主人公在战争中的经历。
C2 [ C usually plural ]（尤指不愉快往事的）闪回
a sudden, clear memory of a past event or time, usually one that was bad
I kept having flashbacks of her lying there bleeding. 我的脑海里不断闪现出她躺在那里流着血的情景。