Sender and recipient authentication guarantees that a sender and a recipient are who they say they are, respectively.

发送方及接收方身份验证保证了发送方和接收方分别就是他们所声称的人。

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The primary physician can specify the role of the recipient to redact appropriate words, and prepare a different version of the document that suits each recipient.

主治医生可以指定接受者的角色，以屏蔽相关单词，也可以为每位接受者准备不同版本的文档。

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That is, a sender can confirm the identity of the recipient who the sender wants to send a message to, and a recipient can confirm the identity of the sender from whom a message was received.

也就是说，发送方能够确认其意愿中的消息接收方的身份，而接收方能确认消息发送方的身份。

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"We are here today to announce the first synthetic cell -- a cell made by starting with the digital code in the computer, building the chromosome from four bottles of chemicals, assembling that chromosome in yeast, transplanting it into a recipient bacterial cell and transforming that cell into a new bacterial species."

VOA: special.2010.07.20

The same problem is with organ transplantation is that the recipient has to be matched to the donor and so that's a problem.

和器官移植中的问题一样,受体需要与供体匹配,这就是问题所在

耶鲁公开课 - 生物医学工程探索课程节选

That's a big problem and so can you protect these cells that you give to the recipient from attack by the recipient's immune system?

并且至关重要,那么你们想办法保护这些植入受体的细胞,使它们免受免疫系统的排异反应么

耶鲁公开课 - 生物医学工程探索课程节选

They argue that they don't create any kind of a contract between sender and recipient merely because they land in the recipient's inbox.

WSJ: Email Disclaimers Proliferate

Furthermore the process of carefully choosing a gift bonds the purchaser more to the recipient than it does the recipient to the purchaser.

FORBES: Do Yourself A Favor And "Voucherize" The Christmas Thing

My recipient could be almost anywhere in the world: 51% of transplants through Be The Match involve an international donor or recipient.

CNN: Why I donated my bone marrow