stamina
noun [ U ] uk/ˈstæm.ɪ.nə/ us/ˈstæm.ə.nə/
C1 耐力；耐性；持久力
the physical and/or mental strength to do something that might be difficult and will take a long time
The triathlon is a great test of stamina. 铁人三项运动是对耐力的极大考验。
Synonym: staying power