Now the lion can catch and kill the yellow bull.

现在狮子能逮住黄牛并将其杀死。

youdao

When the lion runs after the yellow bull, the black bull and the red bull don't help him.

当狮子追逐黄牛时，黑牛和红牛都没有帮助黄牛。

youdao

The bull was foolish enough to be persuaded by this flattery to have his horns cut off; and, having now lost his only means of defence, fell an easy prey to the lion.

公牛也够蠢的，竟然被这番恭维的话所说服，把自己的两只角折断了，刚刚失去用以防卫的武器，公牛就轻易地被狮子俘获了。

youdao

His antics have since been mimicked by the Chicago Bulls' Benny the Bull and the Denver Nuggets' Rocky, an off-beat mountain lion.

FORBES

The elephant bull continues to chase the lion, holding him at bay and allowing the younger, slower elephants to put some distance between themselves and the super-predators.

WSJ: Walk With the Animals