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This is often triggered when we breathe in irritants in air pollution and tobacco smoke.
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哮喘往往是由于我们吸入的刺激物所诱发，如空气污染、香烟烟雾。 |
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This is on the low end of the projection only.
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这只是保守的估计. |
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This is one area of greenery where California cannot claim to be the global leader.
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加利福尼亚还不能声称自己是这个绿色领域的全球领跑者。 |
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This is one big reason, other than merely acting the big-power part, for the military build-up, and could one day bring war with the real superpower.
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台湾问题是中国增强军事力量的重要理由，此时中国不再扮演有度量的大国的身份，有遭一日，中国总会因此同真正的超级大国发生战争。 |
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This is one for the history books: the world\'s firt HALO jump.
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这是世界上第一次HALO跳伞*，它将被载入史册。 |
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This is one in a thousand chance in life.
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这是一生难得的机会. |
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This is one is definitely different!
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炸可乐是如此富有新意！” |
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This is one of a series of images designed to look for landforms near Europa's terminator - the line dividing day and night - where low Sun angles highlight subtle topographic features.
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这是一系列被设计用来观察木卫二晨昏线附近地貌的图片中的一幅，晨昏线是分隔白天和夜晚的界限，那里阳光以低角度突出了精细的地貌。 |
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This is one of history's less surprising crises.
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这次危机在历史上还不是最严重的。 |
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This is one of my family photoes.
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这是一张我家庭的照片。 |
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This is one of our best selling items.
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这是畅销商品之一。 |
