spontaneous是什么意思？

I had another spontaneous miscarriage at around the 16th to 18th week.我在大约第16至18孕周时又经历了一次自然流产。spontaneous outpourings of praise一片自然迸发的赞美声a spontaneous offer of help主动提出帮助...

spontaneous的音标：spontaneous的英式发音音标为：[spɒn'teɪniəs]spontaneous的美式发音音标为：[spɑn'teɪniəs]...

spontaneous的反义词有：compulsory, compulsory, studied。adj.spontaneous的反义词（自发的;非强制的）：compulsory。spontaneous的反义词（其他释义）：compulsory, studied。...

spontaneous的近义词/同义词有：automatic, instinctive, inherent, natural, natural, instinctive, voluntary, inherent, involuntary, extemporaneous, option, automatic。adj.spontaneous的近义词（自发的）：automatic, instinctive, inherent, natural...

There are many factors influencing spontaneous combustion in goaf and their relative essentialities are different.采空区自然发火的影响因素很多,各因素之间的相对重要性不同.The disease has an unpredictable course with exacerbations and spontaneous re...