initiative/ ɪ'nɪʃətɪv /

1.noun [c] 
(idea,measure) 倡议

2.noun [u] 
(resourcefulness) 主动性

to take the initiative
采取主动
to act on one's own initiative
主动采取行动
to have the initiative
掌握主动权
to have the initiative to do sth
有做某事的主动性