| 单词 | naturally occurring |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔adrenochrome〕A naturally occurring chemical formed during the oxidation of epinephrine.肾上腺素红：在肾上腺素氧化过程中自然形成化学物质美国传统〔break down〕The oil is attacked by naturally occurring microbes which break it down.原油受到了自然产生的分解油类物质的微生物的侵蚀。柯林斯高阶〔limekiln〕A furnace used to reduce naturally occurring forms of calcium carbonate to lime.石灰窑：把石灰石加以还原的炉美国传统〔melanin〕Any of a group of naturally occurring dark pigments, especially the pigment found in skin, hair, fur, and feathers.黑色素：天然黑色素，尤指皮肤、头发、毛皮及羽毛中的色素美国传统〔mineral water〕Naturally occurring or prepared water that contains dissolved mineral salts, elements, or gases, often used therapeutically.矿泉水：含有溶解的无机盐，矿物成分或气体的天然水或人工合成的水，通常用于治疗某些疾病美国传统〔nutraceutical〕A food or naturally occurring food supplement thought to have a beneficial effect on human health.保健食品：对人体健康有增益效果的食物或天然食品添加物美国传统〔oleoresin〕A naturally occurring mixture of an oil and a resin extracted from various plants, such as pine or balsam fir.含油树脂：一种天然的油和从各种植物如松树和胶杉中提炼出来的树脂的混合物美国传统〔phytoestrogen〕A naturally occurring compound of plants, such as soybeans, or plant products, such as whole grain cereals, that acts like estrogen in the body.植物雌激素，植物固醇，植物性女性荷尔蒙：在植物（如大豆）或植物产物（如全谷类植物）中天然形成的化合物，作用犹如人体内的激素美国传统〔radioelement〕A naturally occurring or artificially produced radioactive element.放射性元素：自然产生或人为制造的放射性元素美国传统〔refine〕Oil is refined to remove naturally occurring impurities.油经过提炼去除天然存在的杂质。柯林斯高阶〔refine〕Oil is refined to remove naturally occurring impurities.油经过提炼去除天然存在的杂质。外研社新世纪〔triglyceride〕A naturally occurring ester of three fatty acids and glycerol that is the chief constituent of fats and oils.甘油三酸酯：甘油与三个脂及酸形成的天然的酯，是脂肪和油的主要成分美国传统〔water〕Often waters Naturally occurring mineral water, as at a spa. 常作 waters 矿泉水：自然出产之矿质水，如矿泉中的水美国传统〔yellowware〕Earthenware made from a naturally occurring yellowish clay and ranging in color from pale yellow to mustard.黄陶：用天然的淡黄色黏土制作的陶器，颜色从浅黄色至深黄色美国传统 |
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