Water is a fish's natural element.
水是鱼的天然生活环境。
Arsenic is a natural element found in soil and minerals.
砷是一种自然元素，存在于土壤和矿物中。
George Dickie's definition is short of the natural element.
乔治·迪基的定义缺少自然因素。
This natural element is often added to drinking water supplies.
这种天然物质经常会添加到饮用水里。
This natural element is often added to drinking water supplies.
这种天然物质经常会添加到饮用水里。
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