spontaneous

【发音】
美 /spɑn'tenɪəs/ 英 /spɒnˈteɪniəs/
【翻译】
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adj.自发的
英释:something that is spontaneous has not been planned or organized, but happens by itself, or because you suddenly feel you want to do it
【短语】
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spontaneous combustion : 自燃
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spontaneous emission : [电磁学]自发发射
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spontaneous abortion : 自然流产;自发性流产
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amplified spontaneous emission : 放大自发射;放大式自发射
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spontaneous ignition : 自燃
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spontaneous polarization : 自发极化;自然极化
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spontaneous recovery : 自然回复(恢复);自然痊愈
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spontaneous radiation : 自发辐射
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spontaneous magnetization : 自发磁化;自发磁化强度
【例句】
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The crowd gave a spontaneous cheer.
人群自发地欢呼起来。
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My spontaneous reaction was to run away.
我的本能反应就是逃跑。
【同、近义词】
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adj.自发的;自然的;无意识的
autonomous/mechanical/natural/initiative/
【同根词】
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adv
spontaneously : 自发地;自然地;不由自主地
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n
spontaneity : 自发性;自然发生
spontaneousness : 自然;任意