registered letter

基本解释

Do yo wish to send it as an ordinary or registered letter?
你想寄一封平信还是挂号信？
A man called at a village post-office for a registered letter.
一个人来到乡村邮局取挂号信。
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Martin:I want to have this letter registered .
这封信我要寄挂号。

Then there is the registered letter that Mr Pinault sent to a senior executive at the bank on March 31st 1993.
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It would force internet-service providers (ISPs) to reveal the identities of users downloading copyrighted material, and would send them two warnings: the first by e-mail, the second by registered letter.
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Justice Stephen Breyer said that in today's world, a registered letter is worse than ordinary mail, noting that "we don't all have butlers at the door" and asking why the U.S. Post Office can't be more flexible, like Federal Express.
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