“让步”这一概念在英语语法中可以用从属连词、介词、复合介词、分词短语或其它特殊结构加以表达,但这些词语和结构在意义上和用法上不尽相同,笔者通过参阅国内外一些语法著作,并根据自己在教学中的实际体会,对它们的异同进行综合和比较,以便使读者更加准确地理解和应用“让步”的各种表达方法. The concept of “concession” can be expressed in English grammar with subordinate conjunctions, prepositions, compound prepositions, participle phrases or other special structures. However, these terms and structures differ in meaning and usage, And some grammar works according to their actual experience in teaching, their similarities and differences are integrated and compared in order to enable readers to more accurately understand and apply the “concession” of the various expressions.