commentary

/ˈkɑmənˌtɛri/

a written explanation or criticism or illustration that is added to a book or other textual material

中文释义：评论；注释；解说

The newspaper provided a detailed commentary on the new policy.

报纸对新政策提供了详细的评论。

His commentary on the match was both insightful and entertaining.

他对比赛的解说既深刻又有趣。