1.His feel for radio, especially, had been honed by years spent as a sports commentator on local radio in Iowa.
里根善于运用广播，特别凭借自己多年在衣阿华州一家当地电台工作时练就的本领。
2.The sports commentator had his own radio program.
在直播节目中评论员犯了个大错误。
3."He is the core of China's basketball, " says Ma Jian, who often works as a sports commentator.
“他是中国篮球的中心，”MaJian一名中国体育评论员说道。
4.In terms of the host and sports commentator of the Olympic Games program, who is your favorite host or commentator?
就奥运节目的主持人和体育评论员来说，谁是你最喜爱的主持人和评论员？