Since all compounds are electrically neutral, there also must be a species in the oxidation-reduction reactions that gains electrons.

因为所有的化合物都是电中性的，因此在氧化还原反应中某种物质一定获得了电子。

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The grapheme modified by a macrocyclic compound is used as the catalyst and is used for catalyzing the oxygen reduction of batteries under acidic, neutral and alkaline conditions.

本发明以大环化合物修饰的石墨烯作为催化剂，应用于电池的酸性、中性和碱性条件下氧还原的催化。

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Mr. Barthold ran an experiment in which he eliminated some major tax expenditures and measured how much of a rate reduction that would permit while remaining revenue neutral.

FORBES: Eliminating Tax Expenditures To Cut Rates - Early Results Are Underwhelming

Many schools have pledged to go "carbon neutral" by offsetting their greenhouse gas emissions by investing in CO2 reduction efforts elsewhere.

FORBES: Magazine Article