劍橋詞典a large Australian bird with a long neck and grey or brown feathers . Emus cannot fly but have long legs and can run quickly . （產(chǎn)于澳大利亞的）鴯鹋 Emus grow to almost two metres and can run at nearly 50 kph . 鴯鹋可以長到差不多兩米高，奔跑時速幾乎可達(dá)50公里。 返回 emu