(idiom) well-matched; equally matched; to be on a par with each other without a clear winner

(literary) evenly matched; to be at a draw or tie; impossible to distinguish who is superior or which is heavier; also written [[不分轩轾|不分軒輊|bu4 fen1 xuan1 zhi4]]

difficult to distinguish which is better or worse; being on par with one another