If it's a friend or a relative, always use hand-written letters in preference to typing because they're more personal and represent your sincerity.

通常是朋友或者亲戚之间用手写的方式，因为这样更个人，也代表你的真诚。

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Models represent data and provide functions necessary to manage, manipulate, and perform calculations on this data, which is usually (though not always) stored in a database.

模型表示数据，并提供管理、操作、计算数据所需的函数，它们通常存储(虽然不是总是)在数据库中。

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To avoid any potential for error, you should always represent LSIDs in RDF using their canonical form: lower case.

为避免任何可能出现的错误，应始终用 LSID 的规范形式（小写）在 RDF 中表示它们。

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The 12 people chosen for the ritual would always be priests to represent Christ's 12 apostles.

NPR: Pope Washes Feet Of Young Detainees In Ritual

According to the source, during Peruvian Chamber of Commerce or other business meetings in which both men have been called to participate, they always send non-family executives to represent them.

FORBES: Peru's Feuding Beauty Brothers Join Forbes' Billionaire Ranks

The researchers say in Italian, letter groups almost always represent the same unique sound from word to word.

BBC: Scientists find cause of dyslexia