"where on earth" in Chinese (Traditional)
到底在哪裡究竟在哪裡
Definition
用來強調驚訝或困惑，詢問某物或某人到底在哪裡，相當於「究竟在哪裡？」
Usage Notes (Chinese (Traditional))
非正式強調語氣的說法，多用於口語，表示驚訝或困惑。較沒帶髒話的語氣。適合熟人對話，不適用正式場合。
Examples
Where on earth are my keys?
我的鑰匙**到底在哪裡**？
Where on earth did you go after school?
你放學後**到底去了哪裡**？
Where on earth is everyone?
大家**到底在哪裡**？
I've looked everywhere—where on earth could it be?
我到處都找了——**到底在哪裡**？
Where on earth have you been? I was starting to worry.
你**到底去哪裡了**？我都開始擔心了。
Where on earth did you find that vintage jacket?
你**到底在哪裡**找到那件復古外套的？