政策的实施使用 implement 较为恰当.生效可以用take effect 或 be effective, kick in 似乎不是这个意思. From what I had heard, a new policy is going to be implemented soon, those couples who are from the one-child families can have a second child.
policy 英[ˈpɒləsi] 美[ˈpɑːləsi] n. 政策; 方针; 原则; 为人之道; 保险单; [例句]You are advised to read the small print of household and motor insurance policies.建议阅读家庭财产和汽车保险单中的附属细则。[其他] 复数：policies
