• adj. 自發的；自然的；無意識的

來自拉丁語 spontaneus,自由意志的，自發的，來自短語 sua sponte,自我意志，自愿，來自 sua,

spontaneous (adj.)

1650s, "occurring without external stimulus," from Late Latin spontaneus "willing, of one's free will," from Latin (sua) sponte "of one's own accord, willingly;" of uncertain origin. Related: Spontaneously; spontaneousness. Used earlier of persons and characters, with a sense "acting of one's own accord" (c. 1200). Spontaneous combustion first attested 1795. Spontaneous generation (the phrase, not the feat) attested from 1650s.

1. I had another spontaneous miscarriage at around the 16th to 18th week.

我在大約第16至18孕周時又經歷了一次自然流產。

來自柯林斯例句

2. spontaneous outpourings of praise

一片自然迸發的贊美聲

來自《權威詞典》

3. a spontaneous offer of help

主動提出幫助

來自《權威詞典》

4. Spontaneous applause broke out as soon as she finished speaking.

她一講完,大家不約而同都鼓起掌來.

來自《現代漢英綜合大詞典》

5. The eruption of a volcano is spontaneous.

火山的爆發是自發的.

來自《簡明英漢詞典》