The machines run on electricity. 这些机器靠电力运转。
an electricity supply 电力供应
Switch off the electricity before you attempt any repairs. 在你修任何东西之前,都要把电源切断。
Household waste could be burned to generate electricity. 可以焚烧生活垃圾来发电。
Salt water conducts electricity more easily. 盐水更容易导电。
noun
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