Nothing. 没什么

474. You might want to leave before I change my mind,
     你赶快出去 别等我改主意
475. and let her beat you to a pulp with her tiny and professional fists.
     让她用小拳头把你揍成肉饼
476. What?
     怎么了
477. Nothing.
     没什么
478. It's just...
     只是
479. Nothing.
     没什么
480. Oh! This one is skin grafting!
     噢 这盘录的是表皮移植

来自《实习医生格蕾 第一季 第三集 Grey's Anatomy S01E03》第 477 行