天然的
adj. natural ; crude ; inartificial ; unlearned
双语例句原声例句
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佛罗里达柑桔有一种天然的甜味。
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树木起天然的保护作用，遮挡了阳光的照射。
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他们认为棍子是一种天然的牙齿护理。
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Another example is in the nervous system, patients that have Parkinson's disease have too little of a natural ligand called dopamine.
另一个例子有关神经系统,帕金森氏病的患者,缺乏一种叫做多巴胺的天然的配体
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So, that was a naturally occurring attenuated virus that could be produced into a vaccine that didn't cause the disease.
因为天花病毒存在天然的衰减病毒,这种衰减病毒可以用来,直接生产不致病的疫苗
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That's why people are so excited about embryonic stem cells because in nature they become all the cells of the body.
这就是为什么胚胎干细胞如此让人激动,因为它的天然功能就是变成所有身体细胞
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