" Secondly, the writer contends that..." ; " The article notes..." ; " The lecturer, however, rebuts this by asserting that..." ; " He elaborates on this by mentioning that..." and here it is.
“其次,作者认为......”;“文章指出......”;“然而,演讲者反驳说......”;“
通过提到......
详细说明这一点”,就是这样。