Bird has fluffed feathers, and is sleeping on both feet during the day or at a time when it is normally active (birds normally sleep on one foot).是什么意思_Bird has fluffed feathers, and is sleeping on both feet during the day or at a time when it is normally active (birds normally sleep on one foot).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句