题目内容：

帮忙分析一下这一句的语法结构
Comment on the success you have attained by looking in the past at the target you wanted to achieve most;
回头看看你发誓取得的目标,然后评价你到底有多成功；

优质解答

Comment on （谓语）the success （宾语）you have attained （后置定语）by looking in the past at the target you wanted to achieve most（方式状语）;