| 释义 |
how, why, where, who, etc. on ˈearth(informal)used to emphasize the question you are asking when you are surprised or angry or cannot think of an obvious answer(加强疑问句的语气)到底,究竟What on earth are you doing?你究竟在干什么?How on earth can she afford that?她怎么可能负担得起呢? |