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1. Oxford American Dictionary

   energy

   • IPA[ˈenərjē]

   美式

   • n.
     the strength and vitality required for sustained physical or mental activity；a person's physical and mental powers, typically as applied to a particular task or activity

   • noun: energy, plural noun: energies

2. • 釋義

   n.

   名詞

   • 1. the strength and vitality required for sustained physical or mental activity changes in the levels of vitamins can affect energy and well-being 同義詞 vitality, vigor, life, liveliness, animation, ... 更多vivacity, spirit, spiritedness, fire, passion, ardor, zeal, verve, enthusiasm, zest, vibrancy, spark, sparkle, effervescence, exuberance, buoyancy, perkiness, sprightliness, strength, stamina, forcefulness, power, might, potency, dynamism, drive, push, informalzip, zing, pep, pizzazz, punch, bounce, fizz, oomph, go, get-up-and-go, vim and vigor, feistiness
   • ▪ a person's physical and mental powers, typically as applied to a particular task or activity an alternative is to devote your energies to voluntary work
   • 2. power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines nuclear energy 同義詞 power
   • 3. the property of matter and radiation which is manifest as a capacity to perform work (such as causing motion or the interaction of molecules) a collision in which no energy is transferred
   • ▪ a degree or level of energy possessed by something or required by a process gamma rays at different energies