鲣鸟

a large, flightless, fast-running Australian bird, similar to an ostrich but smaller, with shaggy greyish-brown plumage and a long neck and legs.

示例:• The emu is the second-largest living bird by height.鲣鸟是现存的第二大鸟类。• We saw an emu running across the field.我们看到一只鲣鸟跑过田野。