The government is to ban payments to witnesses by newspapers seeking to buy up people involved in prominent cases such as the trial of Rosemary.

02译文

政府将禁止报社向证人支付报酬，那些报社试图买通涉及诸如罗斯玛丽审判等著名案件的证人。

03点睛

be to do表将来，该句用is to ban表示“将要禁止”的概念。由介词by可知，newspapers是支付payments的一方。现在分词短语seeking to...作newspapers的后置定语，其中buy up意为“收购;尽量购买”。过去分词短语involved in.作后置定语限定people，such as...举例说明prominent cases。