Definition (位置)
Used to ask about the whereabouts of something that cannot be found.
（用於尋找不到東西時）東西去哪了？
Where have my keys gone?
我的鑰匙去哪了？
Where has my ruler gone? It was just here a moment ago!
我的尺子去哪了？剛才還在這的！
Where has my bag gone? Oh, it's here, under the desk.
我的包去哪了？哦，在這，在桌子底下。