These early symptoms are often very mild, so it is easy to mistake them for another condition, such as a cold, or glandular fever.

这些早期症状往往是非常温和的，所以很容易误以为他们的另一项条件，如患感冒，或腺发烧。

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If something blocks the "good" side, such as congestion from allergies or a cold, then resistance increases dramatically.

如果有什么东西挡住了“好”的一面，比如过敏或感冒引起的充血，那么抵抗力就会急剧增强。

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Brittleness remains a problem when building steel structures in cold conditions, such as oil rigs in the Arctic.

对于在寒冷条件下建造钢结构，比如北极的石油钻井平台，如何解决材料的脆性仍然是一个问题。

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Unstable means that if an imaginary balloon filled with air from near the ground were to be lifted upward, colliding with some weather feature such as a cold front, the "balloon" would become warmer than the surrounding air at that level.

CNN: The making of a nightmare tornado

During hundreds of camping trips and meetings and service projects and weird and wonderful events such as the Klondike Derby (a cold-weather competition in which scouts drag makeshift sleds over frozen ground for hours), I learned how to adapt to changing circumstances on the fly while keeping the main goals in sight.

WSJ: A Lesson From the Scouts' Own Book

Gems level up and their requirements increase as they grow in power, so an intelligence based skill such as Cold Ring will have to stay at a low level in order to be usable by a strength heavy character, but technically all classes have all skills open to them .

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