His research centers on the imperial eagle.

他的研究以帝鹰为中心。

Five kinds of threatened birds, including the Spanish imperial eagle, live in Donana.

包括西班牙帝鹰在内的五种濒危鸟类生活在多纳纳国家公园。

Five kinds of threatened birds, including the Spanish imperial eagle, live in Do? ana.

包括西班牙帝王鹰在内的五种濒危鸟类生活在多尼亚纳国家公园。

The sails were pure white, and high above, when Hiccup craned his neck, he could see the Roman flag of the Imperial Eagle flapping cheerily in the wind.

帆是纯白的，当卡嗝伸长脖子时，他可以看到帝国鹰的罗马旗帜在风中欢快地飘扬。