Definition
to dispatch a letter or package to a recipient
寄送，邮寄
I need to get this letter off before the afternoon.
我需要在下午之前把这封信寄出去。
She got a package off to her friend yesterday.
她昨天寄了一个包裹给她的朋友。
I just need to confirm the address to get this parcel off.
我只需要确认地址就能把这个包裹寄出去。
to dispatch a letter or package to a recipient
寄送，邮寄
Did you remember to get that reply off?
你记得把回复寄出去了吗？
We are waiting for the courier to ensure they get the package off.
我们正在等待快递人员确保他们寄出包裹。
Her job is to make sure all documents get off in a timely manner.
她的工作是确保所有文件都能及时寄出。