"on earth", "the hell" 中文怎么说？
Some phrases Westerners insert in questions, to... I don't know, to create an impact?
For example:
1. Who on earth eats two-months-old expired cheese without having diarrhea?
2. Who the hell are you?

Question

Answer

1.究竟是谁这么牛逼吃两个月过期奶酪都没有腹泻？
2.你他妈到底是谁！？

Answer

on earth 究竟，到底
the hell 用来加强语气，可以不翻译

Answer

1. Who on earth eats two-months-old expired cheese without having diarrhea?
谁都知道，吃了过期两个月的奶酪是不可能不腹泻的。

2. Who the hell are you?
你到底是谁？
你究竟是谁？

Answer

"on earth":谁都知道（eveyone knows that...）
 "the hell" :究竟or到底