精品学习网商务英语考证频道为大家搜集整理了商务英语高级相关知识内容，具体内容如下：
BEC高级阅读词汇：最惠国待遇
最惠国待遇 most-favored-nation status
最终用户 end user
遵纪守法、廉洁奉公 observe the relevant code of conduct and the law and honestly perform one's official duties
左倾 pinko
左右为难 between the devil and the deep blue sea; between the rock and the hard place
坐视不管 sit idle
做假帐 salt a false account