commentaryn.实况报道；现场解说；评论；注释commentary and background materials解说词与画面背景资料Commentary on the Waterways Classic《水经注》Commentary on the Waterways Classics水经注Commentary by a Xinbua correspondent新华社记者述评Commentary by Director Harold Becker汤姆克Commentary by Screenwriter Ben Ramsey编剧本·拉姆齐评论Commentary with Director Peter Jackson导演彼得·杰克逊评论Commentary on Perfect Competitive Market完全竞争市场及对其评论Commentary on Organizational Commitment Research组织承诺研究评述