每回收一吨纸就能拯救17棵树，这不仅是生意，更是留给后代的遗产。

I'm grateful for every moment, every experience, and every person in my life.

测试程序的最好方法是测试它。

Innovation distinguishes between a leader and a follower.

化学的语言是普遍的，它的符号被所有国家理解。