com·men·ta·torAWBrE/ˈkɒmənteɪtə(r)/NAmE/ˈkɑːmənteɪtər/noun~ (on sth)apersonwhoisanexpertonaparticularsubjectandtalksorwritesaboutitontelevisionorradio, orinanewspaper(电视台、电台或报章的)评论员◆apoliticalcommentator政治评论员apersonwhodescribesaneventwhileitishappening, especiallyontelevisionorradio(尤指电视台或电台的)现场解说员,实况播音员◆atelevision/sportscommentator电视台/体育运动实况解说员