“冠军称号”常见的英文表达是 “championship title” 。
例如:He won the championship title in the tennis tournament.(他在网球锦标赛中赢得了冠军称号。)
此外,在一些语境下,也可以用 “title of champion” 来表达相同意思。例如:She earned the title of champion in the swimming competition.(她在游泳比赛中获得了冠军称号 。)