Their analysis ruled out the possibility that it was firms political influence rather than their CSR stand, that accounted for the leniency: companies that contributed more to political campaigns, did not receive lower fines.
重点单词词组：
Analysis:分析，动词是analyze
Rule out:排除
Possibility:可能性， 形容词是possible
Political influence: 政治影响力
Account for:对…有责任/对…做出解释
Leniency:宽大，仁慈
Contribute to:促进，名词contribution，贡献的意思
Campaign:运动
Fine:名词，罚款的意思
语法知识：本句结构比较复杂，主干：Their analysis ruled out the possibility。后边是possibility 的定语从句，解释这种可能是什么;
在定语从句有一个强调句it was that;
后边冒号同位语从句主干是 companies did not receive lower fines,中间嵌套一个关于companies的一个定语从句。
翻译：他们的分析排除了这种可能性:是公司的政治影响力，而不是他们的企业社会责任的立场导致了宽松处理，因此,为政治运动做出了贡献的公司，并没有得到较低的罚款。
