Maildrop
na. 郵筒；郵筒槽口；秘密通信地址\\n
??? 情景例句
The security guard asked the stranger for some I.D.
保安要求陌生人出示身份證。
There are many people I'd like to thank.
我想感謝很多人。
I beg your pardon?
請您再說一遍（我沒有聽清）。