How do you know that? Are you using your magical animal powers?

你怎么知道 你在用你那神奇的动物能力吗？

" I have strong animal power when I go on a buffalo hunt, " Black Hawk said proudly.

黑鹰得意地说：“我去野牛狩猎时，我的兽力很强。”

These societies get their start with the industrial revolution around 1750, as production began to shift from human and animal power to machine power.

随着生产开始从人力和畜力转向机器动力，这些社会开始于 1750 年左右的工业革命。

This was a time, of course, before there were any engines, and so you had to actually pull the boats with animal power – horses and other animals.

当然， 那时候还没有任何引擎，所以你必须用动物的力量——马和其他动物来拉船。