双语例句原声例句权威例句
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You're at greater risk for a pulled muscle when running in the cold, so warm up slowly and run easy on very cold days.
你在冷天里跑步更有可能拉伤肌肉，所以慢慢暖身，和适当的慢跑。
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When the heat from the foot is applied on the top side of the ceramic wafer and cold is applied on the opposite side, from the cold of the ground, electricity is generated.
当脚部的热量作用于上层陶瓷薄片，较冷的地面作用于下层的陶瓷片时，电就产生了。
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Our perception of cold may depend mostly on changes in skin temperature, which starts dropping first when we step outside. People feel cold well before their core temperatures dip, says Tikuisis.
Tikuisis说，我们对冷的感觉可能大多靠皮肤温度变化而感知，我们到户外就能
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When melting snow crystals or raindrops fall through very cold air, they freeze to form small particles of ice,called sleet.
VOA: special.2010.01.05
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You can feel something cooling off right. I mean simple examples of these happen when you you know, if you buy cold or hot packs.
可以立即反应的东西,你可以感到有的东西会冷却，对吧？,我是说，举个简单的例子。
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When something hot, it's got a higher temperature than when something is cold.
当某样东西是热的时，它的温度,比冷的东西要高。
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