自发性活动

1.voluntaryactivity  

自的英语翻译：

certainly; from; of course; oneself; self; since
【建】 auto-

发的英语翻译：

hair; issue; send out; deliver; utter; develop; discover
【医】 capilli; capillus; crinis; crinis capitis; hair; Mit.; pili; pilo-
pilus; thrix; trich-; tricho-

活动的英语翻译：

move about; ploy; activity; campaign; function; movement
【计】 activity
【医】 activity; cine-; kine-; kinesio-