原来天鹅们将那只冻在冰上的黑额黑雁围住了，我的朋友担心那只命在旦夕的黑额黑雁或许将在一群天鹅的利喙下变得千疮百孔。
As the swans surrounded the frozen goose, she feared what life it still had might be pecked out by those great swan bills.
所以，科学家们发现是这两种基因，而不是几十种、几百种基因，具有再造出或厚重、或短粗、或细长的喙的能力。
So, with just these two genes, not tens or hundreds, the scientists found the potential to recreate beaks, massive or stubby or elongated.
原来天鹅们将那只冻在冰上的黑额黑雁围住了，我的朋友担心那只命在旦夕的黑额黑雁或许将在一群天鹅的利喙下变得千疮百孔。
As the swans surrounded the frozen goose, she feared what life it still had might be packed out by those great swan bills.
它的喙里一颗牙也没有，但嘴里有上百颗的牙齿。
The Corythosausus had no teeth in its beak, but hundreds of teeth in its mouth.
它的喙里一颗牙也没有，但嘴里有上百颗的牙齿。
The Corythosausus had no teeth in its beak, but hundreds of teeth in its mouth.
应用推荐