So the product of Newtonian mechanics of predicting the future given the present, has got two parts, and one is called kinematics and the other is called dynamics.

所以牛顿力学,基于现状对未来的预测,包含两个部分,一部分被称为运动学,而另一部分被称为动力学

耶鲁公开课 - 基础物理课程节选

The long-term fiscal challenge is largely a product of promises in our entitlement programs, medicare, medicate and social security that we have made the future generations that we cannot afford to keep.

长期财政挑战很大一部分原因,是我们承诺了很多津贴项目，我们承诺给下一代的,医疗保险和社会保险,而现在我们又没法兑现。

普林斯顿公开课 - 国际座谈会课程节选