spontaneousadj.自发的,自然的,本能的;自然产生的
spontaneous manner自燃方式
spontaneous motion[电] 自发运动
spontaneous energy自发性能量
spontaneous strain自发变形
Spontaneous growth自发生成性
spontaneous firing自发燃烧
spontaneous fusion自发融合
spontaneous curing自然固化
spontaneous factor自发因素
spontaneous recall自发回忆
"the spontaneity of his laughter"