pain barrier
noun/ˈpeɪn bæriə(r)/
/ˈpeɪn bæriər/
[usually singular]- the moment at which somebody doing hard physical activity feels the greatest pain, after which the pain becomes less
痛苦极限，痛障（艰苦体力活动的最痛苦时刻，此后疼痛会减轻） - 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。
- He broke through the pain barrier at 25 kilometres and went on to win his first marathon.