我在信箱中發現了你的信件。
I found your letter in the mailbox.
Meaning
mailbox
post office box
Examples
我在信箱中發現了你的信件。
I found your letter in the mailbox.
我在信箱中發現了她的信。
I found her letter in the mailbox.
请问最后一次开信箱在什么时间?
請問最後一次開信箱在什麼時間?
Excuse me, when was the mailbox last opened?
邻居看见信箱不是空的。
鄰居看見信箱不是空的。
The neighbours see that the mailbox hasn't been emptied.