Done or acting from natural impulse. 自然的；自发的。 spontaneous applause 自发之鼓掌。 Produced naturally by internal causes rather than by external influences. 出于内因的。 spontaneous combustion 自燃。 Produced without human labor; natural to the soil. 不用人力产生的；自然生长的。 Weeds are spontaneous generation. 杂草乃自然生长之物。 spontaneous generation 自生；自发(有机体的自然创生)。 adv. spontaneously. n. spontaneousness. |