This USGS survey missed the chemicals of perhaps greatest concern: antibiotics.
USGS的調(diào)查中,少了一項可能最讓人關(guān)切的化學(xué)物質(zhì): 抗生素.
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Geological Survey ( USGS ) share responsibility for the satellites'space and ground segments.
分別承擔(dān)衛(wèi)星的太空部分和地面部分的工作.
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