柯林斯词典bluebird /ˈbluːˌbɜːd/ 1. N any North American songbird of the genus Sialia, having a blue or partly blue plumage: subfamily Turdinae (thrushes) 蓝知更鸟 返回 bluebird剑桥词典a small blue singing bird found in North America 蓝鸲，蓝色鸣鸟（北美小鸟，背及头部有蓝色羽毛） 返回 bluebird