proactive
adjective uk/ˌprəʊˈæk.tɪv/ us/ˌproʊˈæk.tɪv/
主动的，积极的
taking action by causing change and not only reacting to change when it happens
Companies are going to have to be more proactive about environmental management. 公司将对环境管理采取更为积极主动的态度。
a proactive approach/role 积极的态度／作用