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发现瑞普思英语Banned chemicals persist in deep ocean
Banned chemicals persist in deep ocean

Banned chemicals persist in deep ocean

2017-02-22    03'26''

主播： 瑞普思英语

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介绍:
Chemicals banned in the 1970s have been found in the deepest reaches of the Pacific Ocean, a new study shows. Scientists were surprised by the relatively high concentrations of pollutants like PCBs and PBDEs in deep sea ecosystems. Banned 被禁止的 Chemical 化学物质 Persist in 持续 Deep ocean 深海 Reach 管辖范围，区域 The Pacific Ocean 太平洋 Concentration 浓度 Pollutant 污染物 PCBs 多氯联苯 PBDEs 多溴二苯醚 Ecosystem 生态系统
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