The Mexica were careful, however, to maintain a proper distance from the mainland, for defensive purposes in the event of war.

Even while it was maintained for commercial or religious purposes, parts of the house continued to be used as a residence for multiple families.

Communications which are considered official correspondence are maintained, as required by law, for historical purposes.

Today they are rarely used as dwellings, but are maintained primarily for ceremonial purposes.

The majority of space laws that exist today are concerned with international treaties established to maintain peace and use space only for cooperative, scientific purposes.

On rare occasions, it may be determined that a communication from a child under 13 years old should be maintained for historical purposes.

Employers may be required to maintain documentation of emails and other communications for regulatory or compliance purposes.

He claimed his relationship with Wallis was that of an acquaintance and maintained only for professional purposes.

After putting it in a stable, the player must name his horse and maintain it for competitive purposes.

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