| 单词 | 自然存在 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔fieldstone〕A stone occurring naturally in fields, often used as a building material.粗石：在田野里自然存在的石头，通常用来作建筑材料美国传统〔naturalness〕Nitrates are chemicals that occur naturally in water and the soil.硝酸盐是水和土壤中自然存在的化学物质。柯林斯高阶〔occur〕Minerals occur naturally in the earth's crust.矿物自然存在于地壳中。剑桥高阶〔ontology〕The branch of metaphysics that deals with the nature of being.本体论：对自然存在的研究，属于形而上学理论的分支美国传统〔present〕Bacteria are naturally present in the environment.细菌自然存在于环境当中。牛津搭配〔present〕The bacterium is naturally present in large numbers in the intestine.这种细菌大量地自然存在于肠道内。外研社新世纪〔sprite〕A small or elusive supernatural being; an elf or a pixy.小妖精：小的或隐秘的超自然存在物；鬼怪或幽灵美国传统 |
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