The method of psychology must be as exact as the methods of the natural sciences.
人们为了保护自己不受伤害,会伤害他人。
石油行业要主动适应能源革命,加快数字化转型和智能化升级。
无产阶级夺取政权,把生产资料变为国家财产。
The difference between ordinary and extraordinary is that little extra.