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单词 energy
释义

WordReference Random House Learner's Dictionary of American English © 2024
en•er•gy /ˈɛnɚdʒi/USA pronunciation   n., pl. -gies. 
  1. the capacity or power for vigorous activity:[uncountable]I felt such energy that I jogged three miles.
  2. Often, energies. [plural] an exertion of such power;
    effort: She threw all her energies into the job.
  3. Physics[uncountable] Physics. the capacity to do work.Symbol: E
  4. Energy[uncountable] any source of usable power, as fossil fuel, nuclear fission, electricity, or solar radiation.

WordReference Random House Unabridged Dictionary of American English © 2024
en•er•gy  (enər jē),USA pronunciation n., pl. -gies. 
  1. the capacity for vigorous activity;
    available power:I eat chocolate to get quick energy.
  2. an adequate or abundant amount of such power:I seem to have no energy these days.
  3. Often, energies. a feeling of tension caused or seeming to be caused by an excess of such power:to work off one's energies at tennis.
  4. an exertion of such power:She plays tennis with great energy.
  5. the habit of vigorous activity;
    vigor as a characteristic:Foreigners both admire and laugh at American energy.
  6. the ability to act, lead others, effect, etc., forcefully.
  7. forcefulness of expression:a writing style abounding with energy.
  8. Physicsthe capacity to do work;
    the property of a system that diminishes when the system does work on any other system, by an amount equal to the work so done;
    potential energy. Symbol: E
  9. Energyany source of usable power, as fossil fuel, electricity, or solar radiation.
  • Greek enérgeia activity, equivalent. to energe- (stem of energeîn to be active; see en-2, work) + -ia -y3
  • Late Latin energīa
  • 1575–85
    • 1.See corresponding entry in Unabridged vigor, force, potency.
    • 5.See corresponding entry in Unabridged zeal, push.

Collins Concise English Dictionary © HarperCollins Publishers::
energy /ˈɛnədʒɪ/ n ( pl -gies)
  1. intensity or vitality of action or expression; forcefulness
  2. capacity or tendency for intense activity; vigour
  3. the capacity of a body or system to do work
  4. a measure of this capacity, expressed as the work that it does in changing to some specified reference state. It is measured in joules (SI units)
  5. a source of power
Etymology: 16th Century: from Late Latin energīa, from Greek energeia activity, from energos effective, from en-² + ergon work
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更新时间:2024/9/22 10:08:42