名词
中文翻译：浓度
同义词：
['density', 'concentration', 'concentrate例句：1. The solution has a high concentration of salt.（这个溶液的盐分浓度很高。）2. The plant requires a high concentration of water to survive.（这种植物需要高浓度的水才能生存。）']
例句：
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1. The solution has a high concentration of salt.
这个溶液的盐分浓度很高。
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2. The plant requires a high concentration of water to survive.
这种植物需要高浓度的水才能生存。
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3. The oil is highly concentrated in the bottle.
油在瓶子里浓度很高。