subscribe or contribute willingly [generously; enthusiastically; liberally]
Related Translations:
踊跃: 1.(跳跃) leap; jump 短语和例子踊跃欢呼 leap and cheer2.(形容情绪热烈) vying with one another; eagerly; enthusiastically 短语和例子踊跃参军 vie with one another to join the army; 踊跃响应号召 respond to a call enthusiasti