单词 | spontaneous |
释义 | spon·ta·ne·ous ![]() adj. 1. Happening or arising without apparent external cause; self-generated: a microorganism capable of spontaneous movement. 2. Arising from a natural inclination or impulse and not from forethought or prompting: spontaneous laughter; a spontaneous protest. 3. Unconstrained and unstudied in manner or behavior: a spontaneous personality. 4. Growing without cultivation or human labor: spontaneous vegetation. [From Late Latin spontāneus, of one's own accord, from Latin sponte; see (s)pen- in the Appendix of Indo-European roots.] spon·tane·ous·ly adv. spon·tane·ous·ness n. |
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