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来源:雅诚德英语网
Researchers concluded from their studies that the harm brought by pollutants was much severer than we had expected.
研究人员从他们的研究中得出结论,污染物带来的危害比我们预想的要严重得多。
Researchers concluded from their studies that the harm brought by pollutants was much severer than we had expected.
研究人员从他们的研究中得出结论,污染物带来的危害比我们预想的要严重得多。