自然发生

abiogenesis; heterogenesis; spontaneity; spontaneous generation
【医】 abiogenesis; archebiosis; archegenesis; archegony; generatio aequivoca
heterogenesis; heterogenia; heterogony; spontaneous generation

1.heterogenesis  2.spontaneousorigin  3.spontaneousgeneration  4.archigony  5.archegenesis  6.selfgeneration  7.autogenesis  8.autogeny  9.xenogeny  

自然的英语翻译：

nature; of course
【医】 nature; physio-

发生的英语翻译：

happen; generate; occur; take place; engender; exist; go forward; go on
originate
【医】 genesis; occurrence