英語(yǔ)謎語(yǔ)：They are full of hot air

謎題：Why should we never ask balloons for advice?（為什么我們絕不向汽球征求意見？）
    謎底：They are full of hot air.因?yàn)樗鼈兝锩嫒菬峥諝狻?BR>    謎底提示：They are full of hot air.因?yàn)樗鼈兝锩嫒菬峥諝?。hot air熱空氣；吹牛，胡說