n. 北美洲产的蓝知更鸟
网络 蓝鸟; 知更鸟; 青鸟
Not long ago, he found that the bluebirds were nesting in the dead trees which were often cut down, so he began to make bluebird boxes for the birds in order to save them.
不久前,他发现蓝知更鸟在枯树上筑巢,而这些枯树往往会被人们砍去,于是他开始为这些鸟制作蓝知更鸟箱,以拯救它们。
Bluebird fell from her branch.
蓝鸟从她的树枝上摔落。
One of them is the bluebird.
其中一个是蓝鸟。
All day, Bluebird ate bugs.
整个白天,蓝鸟在吃虫子。
Owl and Bluebird became good friends.
猫头鹰和知更鸟成了好朋友。