Because... 因为

574. What?
     什么
575. Why didn't you tell me that when I was going on and on
     我在幻想多美好的时候
576. About how great it was going to be?
     你怎么不告诉
577. Because...
     因为
578. You're George and I'm Cristina.
     你是乔治 我是克里斯蒂娜...
579. His heart surgery is scheduled for the morning.
     他的心脏手术安排在明天上午
580. I really did think I was right, you know?
     我真以为我是对的 知道吗

来自《实习医生格蕾 第一季 第二集 Grey's Anatomy S01E02》第 577 行