1. Papa''s going to buy you a billy-goat.
    爸爸给你买个小山羊

2. The third billy-goat is crossing the bridge.
    第三只公山羊正在过桥。

3.

3. Though the modern popular image of the unicorn is sometimes that of a horse differing only in the horn on its forehead, the traditional unicorn has a billy-goat beard, a lion''s tail, and cloven hooves - these distinguish it from a horse.
    而传统的独角兽有像比利山羊那样的胡子，狮子的尾巴，以及偶蹄，这些特点都将它与马区别开来。

4.

4. The third billy-goat runs.
    第三只公山羊跑起来。