n. a person who is a participating member of an organization
a. tending to become more severe or wider in scope
s. engaged in or ready for military or naval operations
a. disposed to take action or effectuate change
a. 活跃的, 起作用的, 积极的, 有效的, 主动的, 活性的, 现行的, 现役的
n. 主动语态, 积极分子
1. She likes to stay active by going for a run every morning.
她喜欢每天早上跑步保持活跃。
2. Being active helps you stay healthy and feel good.
保持活跃有助于你保持健康并感觉良好。
3. He is very active in his community and volunteers often.
他在社区非常活跃，经常做志愿者。