1. He broke through the pain barrier at 25 kilometres and went on to win his first marathon.
他克服了25公里时的痛苦极限,进而赢得了他的第一个马拉松冠军。

《牛津词典》

2. He broke through the pain barrier at 25 kilometres and went on to win his first marathon.
他克服了25公里时的痛苦极限,进而赢得了他的第一个马拉松冠军。

《牛津词典》