自发

1. 分子扩散运动两种或更多种物质的分子由于随机的热运动自发混合在一起
   The spontaneous intermingling of the particles of two or more substances as a result of random thermal motion.
2. 事件剧一种即兴的、通常是自发的、尤指由观众参与的场景或演出
   An improvised, often spontaneous spectacle or performance, especially one involving audience participation.
3. 自燃的在空气中自发地燃烧的
   Spontaneously igniting in air.

自的英语翻译：

发的英语翻译：