registered mail
US /ˈredʒ.ɪ.stərd meɪl/
UK /ˈredʒ.ɪ.stərd meɪl/

名詞
1.
掛號信, 註冊郵件
a mail service that provides extra security for valuable or important items, ensuring proof of mailing and delivery
範例:
•
I sent the important documents by registered mail.
我通過掛號信寄送了重要文件。
•
You need to send this contract by registered mail to ensure it arrives safely.
您需要通過掛號信寄送這份合同,以確保其安全送達。
在 Lingoland 學習這個單詞