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 spontaneously 添加此单词到默认生词本
ad. 自发, 一时冲动, 出自自然, 不依赖人工, 自然产生, 本能, 自动, 自然而优雅



    spontaneously
    [ adv ]
    1. in a spontaneous manner

    2. <adv.all>
      this shift occurs spontaneously
    3. without advance preparation

    4. <adv.all>
      he spoke ad lib


    Spontaneous \Spon*ta"ne*ous\ (sp[o^]n*t[=a]"n[-e]*[u^]s), a. [L.
    spontaneus, fr. sponte of free will, voluntarily.]
    1. Proceeding from natural feeling, temperament, or
    disposition, or from a native internal proneness,
    readiness, or tendency, without constraint; as, a
    spontaneous gift or proposition.

    2. Proceeding from, or acting by, internal impulse, energy,
    or natural law, without external force; as, spontaneous
    motion; spontaneous growth.

    3. Produced without being planted, or without human labor;
    as, a spontaneous growth of wood.

    {Spontaneous combustion}, combustion produced in a substance
    by the evolution of heat through the chemical action of
    its own elements; as, the spontaneous combustion of waste
    matter saturated with oil.

    {Spontaneous generation}. (Biol.) See under {Generation}.

    Syn: Voluntary; uncompelled; willing.

    Usage: {Spontaneous}, {Voluntary}. What is voluntary is the
    result of a volition, or act of choice; it therefore
    implies some degree of consideration, and may be the
    result of mere reason without excited feeling. What is
    spontaneous springs wholly from feeling, or a sudden
    impulse which admits of no reflection; as, a
    spontaneous burst of applause. Hence, the term is also
    applied to things inanimate when they are produced
    without the determinate purpose or care of man.
    ``Abstinence which is but voluntary fasting, and . . .
    exercise which is but voluntary labor.'' --J. Seed.

    Spontaneous joys, where nature has its play,
    The soul adopts, and owns their firstborn away.
    --Goldsmith.
    -- {Spon*ta"ne*ous*ly}, adv. --
    {Spon*ta"ne*ous*ness}, n.

    1. But there also is a general reluctance to drop the belief, so expertly nurtured by the terrorists, that the abductors are merely desperate victims of unspeakable injustices acting spontaneously and autonomously to attract attention to their plight.
    2. Some slow dance at the mini-dances that spring up spontaneously, swaying to drippy instrumental tunes from cassette players set on the ground.
    3. He spent much of his life explaining that the 'extended order of human co-operation' - his phrase for the complex of rules and institutions underlying capitalism - evolved spontaneously.
    4. Leda Archvadze, sister-in-law of arrested Georgian human rights activist Zviad Gamsakhurdia, said that outside Government House, the site of the confrontation, a memorial has appeared spontaneously.
    5. Usually, teen-agers join the loosely knit gangs spontaneously, police say.
    6. The first big climax impatiently arrived too early; later outbursts sometimes ignited spontaneously, rather than coming as the logical end of Shostakovich's long, slow fuse.
    7. The Soviet president lived up to his reputation for spontaneously wading into crowds Sunday despite the presence of protesters whose chants competed with cheers from most onlookers.
    8. FDA consumer surveys have found that when asked how to prevent cancer, the proportion of consumers who spontaneously mentioned fiber, bran or whole grains increased from 9% in 1984 to 32% in 1986.
    9. The blaze was so intense it literally "cooked" the decks above, spontaneously igniting equipment in those upper decks and spreading the fire vertically rather than horizontally.
    10. I could use the medium as spontaneously as if Henry was a modern figure.
    11. Rectal polyps frequently decline spontaneously after removal of the large bowel in this disorder.
    12. Last month, he spontaneously asked a group of terminally ill children who were camping nearby to come for a barbecue and movie.
    13. In January, Dr. Ignacio Madrazo and colleagues from La Raza Medical Center in Mexico City said they obtained dramatic results after transplanting brain and adrenal tissue from a spontaneously aborted fetus into two Parkinson's victims.
    14. Perhaps the revisionists would like us to believe that the opposition to Judge Bork arose spontaneously from the family picnics and bowling alleys outside the Beltway.
    15. Yesterday's consumer credit and retail sales figures were a rude reminder that there is precious little reason for the voters to get spontaneously excited. If so, the government may be tempted to cut interest rates before the budget.
    16. He described the clashes as "breaking out spontaneously and with force" and said demonstrators had thrown many firebombs at troops.
    17. With an average age of 37, about 10 percent of pregnancies will abort spontaneously anyway, he said.
    18. The more volatile light gases from fresh oil have begun to ignite spontaneously under scorching desert temperatures, framing many lakes in rings of unearthly fire.
    19. Larkin admired her novels and had written spontaneously to tell her so.
    20. White phosphorus spontaneously burns when exposed to air temperatures above 85 or 90 degrees, said Dr. George Rodgers of the Poison Control Center in Louisville.
    21. "It was a decision that was arrived at spontaneously after years and years of thinking about it," Kline jokes. "I had been thinking about directing for a couple of years and suggested it to Joe.
    22. Fights broke out spontaneously.
    23. Foreign sources said the demonstration developed spontaneously at about 11 p.m. after students read a poster on campus describing the death earlier in the day of Cai Jinfang, a 22-year-old geophysics student.
    24. In more than one instance, preview audience members spontaneously erupted in anger, either walking out or speaking out against the film while it was still on screen.
    25. Natural selection, Darwin's theory that stands in opposition to Lamarckism, says that mutations arise spontaneously in organisms, and by chance some of those mutations may allow an organism to survive better than others of its kind.
    26. But the president showed a fighting spirit later, in responding spontaneously to a pro-Bork shout from the audience at a Republican Party fund-raiser.
    27. The U.S. Bureau of Mines said an underground fire apparently started when timbers and debris ignited spontaneously. The 91 miners died of asphyxiation or carbon monoxide poisoning.
    28. If lightning strikes or the forest spontaneously combusts, setting acres ablaze, this is Mother Nature's way.
    29. This reactivity is due to the singlet atom of oxygen eager to break away from its unstable bond to spontaneously allow reversion to oxygen.
    30. Stabile said officials had not determined a motive, but that it appeared some prisoners planned the attack and others joined spontaneously.
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