n.

1. 评论[C]
   a commentary on the world situation

   对世界局势的评论

2. （对某一著作）系统的注释（或评注）[C]
3. 实况报导[C][U]
   His spirited commentary makes a match very interesting even on the radio.

   他对比赛作的实况报导十分生动，即使从收音机收听也很有趣。

4. 纪事[P]
   Caesar's Commentaries

   恺撒纪事

n.

1. the expression of opinions or offering of explanations about an event or situation.
2. a descriptive spoken account (especially on radio or television) of a sports match or other event as it happens.
3. a set of explanatory or critical notes on a text.