作为内部信息，备忘录往往比信函更不正式、更直接。

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

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并且在面试之后，通过电子邮件或者老式的手写信函发个后续信息。

And send those follow-up notes, either through email or an old-school, hand-written letter.

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这些信函应该为我们提供所需要的全部信息。

The letters should provide us with all the information we need.

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