长难句：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 West.
结构剖析：本句的主干是 The government is to ban payments, 介词结构 to witnesses 和 by newspapers...都作后置定语，修饰 payments; 现在分词结构 seeking to buy up people...作 newspapers 的后置定语，相当于 which seek to buy up people..., 其中过去分词结构 involved in prominent cases such as the trial of Rosemary West 又作 people 的定语，相当于 who are involved in prominent cases such as the trial of Rosemary West. 本句的难点在于后置修饰语偏长。
核心词汇： ban 禁止
involved in 卷入，涉及
witness 证人;v.见证
prominent 突出的，杰出的
trial 审判;试验
参考译文：政府要禁止报界付费给证人，因为报界试图收买诸如露丝玛丽.韦斯特这类要案中涉及的证人.
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