letdownKK [ˋlɛˏtdaʊn] /ˈlɛˌtdaʊn/名詞1令人失望的事、掃興的事After all the hype, the movie was a complete letdown.經過那麼多宣傳,這部電影真是令人大失所望。2失望、洩氣She felt a sudden letdown when the trip was canceled.旅行取消時,她突然覺得很洩氣。3減弱、鬆懈There was no letdown in their effort during the second half.下半場他們的努力絲毫沒有鬆懈。