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Once again, road transport is the main culprit since it alone accounts for 84% of the carbon dioxide emissions attributable to transport.

再次强调，公路运输是罪魁祸首，因为仅公路运输就占了运输产生的二氧化碳排放量的84%。

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Radon in our homes is the main source of exposure to ionizing radiation, and accounts for 50% of the public's exposure to naturally-occurring sources of radiation in many countries.

我们家中的氡是接触致电离辐射的主要来源，在许多国家中占大众接触自然发生的辐射源的50%。

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PeerReach also checked its list of what it considers the top one hundred most influential media Twitterers and found that 22% were likely included in the compromised accounts, including the main accounts for the New York Times, CNN, NPR, Reuters, the BBC, and the Guardian.

FORBES: Twitter Hack Mostly Hit Early-Adopter, Well-Connected Users (And Probably President Obama)

According to the NSPCC, bullying is one of children and young people's main concerns and accounts for a quarter of all calls to the charity's hotline ChildLine.

BBC: NEWS | UK | Education | Boost for bullying mentor scheme

The main thing that accounts for the greater growth in total assets than bank reserves is the expansion of the Fed's swap facilities that allow participating foreign central banks access to dollars to meet the demand for dollars in their countries.

FORBES: Magazine Article