What we need to do is to ensure that every Chinese person can drive a car produced by their own country.

The way positive reinforcement is carried out is more important than the amount.

活着就是受苦，生存就是在苦难中找到某种意义。

老师声称代数是完美而自然的、我们应无条件地接受它，而我甚至不能理解什么是数。对我来说数学课完全就是恐怖和折磨。我完全不理解代数，这使我胆怯得不敢问任何问题。

今天我们播下的每一粒种子都蕴含着改变未来粮食体系的潜力。