Hot and cold, though, are relative terms.

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So as far as the Middle East and Central Asia are concerned, a primary lesson of the Cold War relates to the relative weight the US can securely place in its alliance with Israel on the one hand, and its alliance with the Saudis on the other.

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Some of these collaborations are documented, such as the assistance of George Graham, who shared his vast knowledge of how metals are affected by the relative heat or cold of different latitudes.

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The adenovirus used to produce the compound is a relative of the common cold virus.

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She felt like an ice-cold bottle against his body, the relative told Veron.

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