在多年从属于主流派之后，他如今玩儿似地搞起摇摆舞音乐来了。

After years of mainstream affiliation he is now flirting with rock.

在现代阶段，主流派把“国家”作为经济问题的内生变量进行研究，也涉及不可用货币量化的经济问题。

At modern phase, the mainstream economists study "nation" as an endogenous variable of economy and also involve economy problems that can't be measured by monetary.