dead letter office

名詞

The postal facility that deals with mail that cannot be delivered.

日本語の意味

配達不能な郵便物を処理する郵便局や部署

When the letters had no return address, they were sent to the dead letter office for inspection.

差出人不明の手紙は配達不能郵便物処理局に送られて点検された。

意味（1）

The postal facility that deals with mail that cannot be delivered.

dead letter offices

（ plural ）