energy

精力, 精神, 活力, [物]能量

energy

1. (physics) the capacity of a physical system to do work; the units of energy are joules or ergs; "energy can take a wide variety of forms"

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2. an exertion of force; "he plays tennis with great energy"

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3. enterprising or ambitious drive; "Europeans often laugh at American energy"

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4. an imaginative lively style (especially style of writing); "his writing conveys great energy"

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5. a healthy capacity for vigorous activity; "jogging works off my excess energy"; "he seemed full of vim and vigor"

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