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19 Jul 2018

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Question about English (US)

​‎With the intention of increasing understanding of the biological and human effects of both internal and external radiation exposure and of the spatio-temporal changes occurring after radioactive contamination,

At the 4th line,
Why does "of" follow "and" suddenly (・・?)
I don't think the word "of" is necessary.

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Deleted user

  • Japanese
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