社会结构的研究是对社会关系系统的研究。
The best way to find out if you can trust somebody is to trust them.
我认为这应该被称为谎言,因为猪不像一天,而且人们的橱柜里也没有骷髅。
安全是石油行业的生命线,任何时候都不能放松。
Quality is not an act, it is a habit.
Drones in the future will be as ubiquitous as smartphones are today.