blow hot and cold
對某事物或某人表現出反復無常的情感或態度。
口語·形容某人猶豫不決或態度搖擺
英文釋義
to frequently change one's opinion, attitude, or behavior, often making it difficult for others to understand or predict
例句
She keeps blowing hot and cold about the trip—one day she's excited, the next she's not.
典故來源
源自古希臘寓言《伊索寓言》中，一個人對著手指吹氣取暖，又對著食物吹氣降溫，比喻態度反復無常。