trope
noun /trəʊp/
/trəʊp/
(specialist)- a word or phrase that is used in a way that is different from its usual meaning in order to create a particular mental image or effect. Metaphors and similes are tropes.
转义词语；比喻词语 - a theme that is important or repeated in literature, films, etc.
（文学、电影等中的）重要主题，一再重复的主题 - the trope of the mad scientist in horror movies
恐怖电影中一再重复的疯狂科学家的主题
- the trope of the mad scientist in horror movies
词源mid 16th cent.: via Latin from Greek tropos ‘turn, way, trope’, from trepein ‘to turn’.