As internal messages, memorandums tend to be more informal and more direct than their letter counterparts.

作为内部信息，备忘录往往比信函更不正式、更直接。

youdao

Further, letters are usually sent outside the organization, while memorandums are usually internal messages.

此外，信件通常发送到组织外部，而备忘录中通常是内部消息。

youdao

Users have identities specific to Facebook and communicate mostly via internal messages.

脸谱用户持有特定身份并大多通过站内消息联系。

youdao

Because these molecules can span across the membrane from outside to inside, they're in just the right position to take messages that they receive from outside the cell and transmit them through the membrane into the cells internal apparatus, and that's what they do.

因为这些分子能穿过细胞膜,连通细胞内外,它们所在的位置非常适于接受信息,它们能将外界获得的信息,通过细胞膜传递给细胞器,这正是它们的功能

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Others interviewed report that internal messages have become "less detailed and informative".

BBC: Successes and costs of freedom of information, says MoJ

Underwood imagines an app that manages not just e-mail accounts, but the inbox for any service with internal messages, such as LinkedIn and Facebook.

CNN: New iPhone app vows to fix e-mail clutter

Internal instant messages, e-mails and company documents revealed an intense and competitive culture that blended legitimate research with illegally obtained tips.

ECONOMIST: The verdict is finally in