劍橋詞典a small North American bird with a bright blue back, a grey front , and feathers that stand up on the top of its head 冠藍(lán)鴉，藍(lán)背樫鳥(niǎo)（北美小鳥(niǎo)，藍(lán)背灰胸，有羽冠） 返回 bluejay