Protests and rebellions could be totally wiped away on the paper to make an illusion of peace and harmony—stains are not allowed to be exposed in order to ensure the power and interest of authorities.

Serving in the state-owned news agencies, many journalists would wipe protests from their coverages or distort the facts, so as to ensure the power and interests of authorities.

▲ 英文中的破折号dash（——）：常用在一个解释性的插入语前面和后面，相当于括号；也常用在一个解释性的分句或句子前面。但原文破折号后面的信息还不如其意图解释的内容来得通俗易懂，不如删去。

▲ 被动语态在英文中出现要符合几大要求，其中有：动作执行者不明或不重要。但原句中未出现的执行者journalists明显是题干的核心讨论对象，不仅不建议删除，还需要自然过渡出和authorities的关系。

▲ 改动之后，讨论对象journalists和观点中authorities之间的关系可以通过一个前置的现在分词短语serving in the state-owned news agencies体现，此处就是利用前置的分词短语作原因状语；

▲保留journalists wipe protests from coverages的目的，以so as to不定式作目的状语引出。