大家都认为，对世界感到好奇是学习的最大动力。

It's widely believed that being curious about the world is the greatest motivation in learning.

youdao

世界上近五分之一的电力是由利用落水动力旋转的水轮机产生的。

Nearly one fifth of all the electricity generated worldwide is produced by turbines spun by the power of falling water.

youdao

也许进化为人类婴儿提供了好奇心，和解释他世界的自然动力。

Perhaps evolution provided human babies with curiosity and a natural drive to explain their worlds.

youdao

You were sort of in a punchbowl The country was at a party and we kept drinking from this punchbowl, enjoying ourselves, and the rest of the world would take our dollars.

你就有点像在一个动力十足的碗里,那样的话，整个国家就像是一个大派对，我们在这个,动力十足的碗里畅饮，尽情愉悦，世界其他国家或地区的人也会接受美元。

耶鲁公开课 - 金融市场课程节选