1 [C,U] a spoken description on the radio or television of sth as it is happening （电台或电视台的）实况报道，现场评述: a sports commentary 体育比赛的实况报道

2 [C] a written explanation or discussion of sth such as a book or play 评注

3 [C] something that shows what sth is like 说明；写照: This drug scandal is a sad commentary on the state of the sport. 这起兴奋剂丑闻是体坛现状的一个可悲写照。