どうやって美しい(うつくしい)布(ぬの)を織って(おって)いるのか知りたい(しりたい)好奇心(こうきしん)に耐えられなかった(たえられなかった)から

The wife emerged from the room holding an exceptionally beautiful, glowing cloth. Since it sold for a very high price in the capital, the young man was glad, but his curiosity overcame him, wondering 'How does she weave such beautiful cloth?' Breaking his second promise, he peeked into the room.