We’ve been through a lot together, and the bond we have is unbreakable.
学习数学的唯一方法就是做数学。
可持续性不是一种趋势,而是我们对后代的责任。
It is a first principle of human action that a man does what he believes will satisfy his desires.
企业战略要立足长远,不能只看眼前利益。