hard core cusp

例句：

1. 1. The hardcorefans are always eager to see their favoriteteam perform.
   铁杆粉丝总是迫不及待地想看他们最喜欢的球队表演。
2. 2. The hardcore runners pushthemselves to the limit in everyrace.
   铁杆跑者在每场比赛中都竭尽全力。
3. 3. The hardcore collectorshave amassed an impressive collection ofrare coins.
   铁杆收藏家已经积累了一套令人印象深刻的稀有硬币收藏。