This is the 4989th most frequent Chinese word.
郵政局
Post office.
Here, '郵政局' is used to refer to the post office as a location where postal services are carried out.
我需要到郵政局寄包裹。
I need to go to the post office to send a package.
In this sentence, '郵政局' describes the workplace or establishment where postal service employees work.
郵政局的工作人員非常友好和高效。
The staff at the post office are very friendly and efficient.
This usage of '郵政局' emphasizes the building or facility designated for postal operations.