Electricity greatly improved our quality of life.

电在很大程度上的改善了我们的生活质量。

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Although electricity is intangible, it can be measured in amount and quality.

虽然电是无形的，但可以以数量和质量来度量。

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Although electricity is intangible, it can be measured in amount and quality.

虽然电是无形的，但可以以数量和质量来度量。

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