bluebird

名词 bluebird:

1. fruit-eating mostly brilliant blue songbird of the East Indies
   同义词：fairy bluebird
2. blue North American songbird

1. That is a beautiful bluebird.
   那是一只美丽的知更鸟。

blue.bird

n.（名词）
Any of several North American songbirds of the genusSialia, having blue plumage and usually a rust-colored breast in the male.
蓝鸫：一种北美洲蓝鸫属 鸣鸟，羽毛呈蓝色，雄鸟的胸多呈淡红色