Cold air can trigger chest pain or asthma attacks in some people.

冷空气可能会引发胸疼或者哮喘。

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The problem for NATO is whether such hints of the old, cold-war posture might not trigger confrontation with Russia.

北约的问题在于对于这种陈旧的、冷战式姿态的暗示是否可能引发与俄罗斯的冲突。

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One smile can warm the cold face, one word of comfort can encourage the discouraged heart, while one help can share the heavy burden of life, and one share can trigger the potential.

一个微笑，可以融化沉重的脸，一句安慰，可以鼓舞丧气心田，一点帮助，可以减轻人生重担，一次分享，可以激励奋发潜力。

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During the winter, breathing in cold air can trigger asthma symptoms.

VOA: special.2009.07.28

While DKS was early to pull the promotional trigger on cold weather product as sales most likely were not coming in at the expected rate, we believe much of the discounting was either vendor funded or on carry over product from last year.

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By sending this message of reassurance, the Clinton administration has exposed itself to the charge that it is positively encouraging its cold-war foe to maintain a large, sophisticated arsenal on hair-trigger alert.

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