How long has he been waiting? 他等了多久

587. - I was just... - You were saying goodbye.
     -我只是 -和他告别
588. What's Viper doing here?
     毒蛇怎么来了
589. Probably crashed his bike, again.
     或许又摔下车了
590. How long has he been waiting?
     他等了多久
591. I don't know.
     我不知道
592. I've been busy on real cases.
     我一直在忙别的病例
593. He's all yours.
     他是你的了

来自《实习医生格蕾 第一季 第三集 Grey's Anatomy S01E03》第 590 行