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CNN 10 学生英语 20238合集

Many worry about the potential for bioaccumulation of dangerous elements in the ecosystem.

许多人担心生态系统中危险元素的潜在生物积累。

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She described this concept as " bioaccumulation." " Bioaccumulation, " according to Carson, was the idea that insects will eat the chemicals and they will have a certain amount of that chemical stay in their body.

她将概念描述为“生物蓄积” 。 “生物蓄积” ,根据卡森的说法,意思是昆虫会些化学物质, 并且它们体内会残留一定量的化学物质。

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