noun 下载 🔗分享 黑背鹟,黑背燕雀 Either of two species of bird in the genus Lessonia. Examples : "While birdwatching in Argentina, we spotted two negritos, the males easily identifiable by their black plumage. " 在阿根廷观鸟时,我们发现了两只黑背鹟,雄鸟的黑色羽毛很容易辨认。 bird 与AI对话词汇游戏阅读练习