SAYa spoken description of an event, especially a race or game, made while the event is happening 〔对比赛或体育运动等事件的〕现场实况报道，现场描述
She gave us a running commentary on what was happening in the street.
她就街上的情况向我们作现场报道。
Examples from the Corpus
running commentary• Don't keep up a running commentary.• Photos of Jack were shown, each thrown up on a large screen with a running commentary.• It becomes a running commentary from navigator to driver.• Hearing voices that keep up a running commentary in the head.• Attending is simply describing what the child is doing, rather like a running commentary on the activity.• This man provided a running commentary on the events on the screen, which were otherwise a fabulous mystery.• His running commentary was oft-repeated, I guess.