What thing? 什么事

444. but I sense true greatness on the horizon for our new king.
     但我能预料到， 这位新国王必有丰功伟绩
445. True greatness.
     丰功伟绩
446. So what's the thing?
     你说的那件事呢
447. What thing?
     什么事
448. About kings.
     国王的事啊
449. You said, "The thing you need to understand about kings..."
     你说， "关于国王，你要知道的事 "
450. What? Things? What?
     事情，什么事情

来自《权力的游戏 第一季 第十集 Game of Thrones S01E10 三龙降世》第 447 行