ㄏㄨㄟhuīㄅㄨˋㄌㄧㄡliūㄉㄧㄡdiū

  1. 顏色灰暗樣子牆壁灰不溜丟看起來刺眼!」

gloomy and dull (idiom)​, boring and gray, unpleasantly murky