主语如果是反面，需要增加前缀。
abuse of 主（滥用）
absence of 主（缺乏）

第一段

正反面: Today, in the context of this era featured by increasing commercialization and digitalization, there is a widespread concern over the 主(the issue that......).
双面: When it comes to 主, opinions vary.
Some hold the view that...
While others belive that...

第二段

正: 主 is of great significance to harmonious development and to the basic value outlook of social.development.
反: It is increasing apparent that 主 within government, media and business(household, Cyberspace and campus) could become one of the most dangerous goals to harmonious development.
例: A good case blowing my mind now is Jack Ma, Jobs and President Xi, committing himself to the campaign to raise the awareness of 主.

第三段

To sum up, 主 is not something we can afford to lose or leave at large.
社: Only in a reasonable, prosperous and healthy atmosphere, can we hope to a idea scenes in which people can enjoy their life to the uttermost.
人: It is imperative for us to deliver the moderate value outlook to guide us both mentally and physically.
In addition, we should lay down a self-reminding plan to cultivate our habits concerning study as well as living.
Nothing is impossible, just do it.