见所未见[jiàn suǒ wèi jiàn]
词典unprecedented：空前的；前所未有的，无前例的；无比的；新奇的，崭新的。
词典see what one has never seen before：见所未见。
词典has never seen ... in one's life：见所未见。
词典see many strange things of which one has hitherto been unaware：见所未见。
见所未见[jiàn suǒ wèi jiàn]
see what one has never seen before; has never seen ... in one's life; see many strange things of which one has hitherto been unaware; unprecedented
1. never seen：油锅洗手:wash hands in oil pan | 见所未见:never seen | 神乎其神:Mysterious