something so difficult that one doesn't know if there's even a 1 in 1000 chance of success |
千番に一番の兼合 [せんばんにいちばんのかねあい] /(exp) (obsc) something so difficult that one doesn't know if there's even a 1 in 1000 chance of success/ ------- 千番に一番の兼ね合い [せんばんにいちばんのかねあい] /(exp) (obsc) something so difficult that one doesn't know if there's even a 1 in 1000 chance of success/ |