十万个为什么·科学启蒙30篇（3）
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The Ocean Tastes Salty When I Swim
我在海里游泳时海水是咸的
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Rainwater washes minerals like salt from rocks into rivers and then to the sea.雨水将岩石中的盐等矿物质冲入河流，最终汇入大海。
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Over millions of years, oceans collected huge amounts of dissolved salt from land.数百万年来，海洋从陆地积聚了大量溶解盐。
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Salt stays in seawater because it doesn’t evaporate with the water vapor.盐留在海水中，因为它不会随水蒸气蒸发。
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Every liter of seawater holds about 35 grams of salt — mostly sodium chloride.每升海水约含35克盐，主要为氯化钠。
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Some places like the Dead Sea have even more salt because water evaporates faster there.死海等地区盐分更高，因为那里的水分蒸发更快。
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Fish and seaweed live well in salty water thanks to special body adaptations.鱼类和海藻依靠特殊的生理适应，在咸水中生存良好。
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When you taste ocean water, your tongue senses salt before anything else.尝海水时，舌头最先感受到的是咸味。
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Desalination plants remove salt to make seawater safe for drinking and cooking.海水淡化厂去除盐分，使海水适合饮用和烹饪。
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Ocean currents mix salty water so most areas taste similarly strong.洋流混合咸水，使多数海域咸度相近。
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You’ll feel thirsty after swallowing seawater because your body needs fresh water to balance the salt.吞下海水后你会感到口渴，因为身体需要淡水来平衡盐分。