深圳福田区的海滨．有个红树林自然保护区。这片红树林．根和根相连，校与枝缠绕，涨潮时没入海水，退潮后屹立滩头。鱼虾在她根部嬉戏，小鸟在她枝头跳跃，她像一道绿色屏障，与市区高楼群落相辉映，维系着一片活泼泼的生态。深圳有个“义工联”，由义务为社会服务的各界有志 Futian District, Shenzhen's waterfront. There is a mangrove nature reserve. This mangrove. Roots and roots are connected, school and branches twined, no water into the high tide, ebb beach after ebb tide. Fish and shrimp are playing at her roots. The bird jumps on her branches. She looks like a green barrier that reflects the lively ecology of the downtown towering community. Shenzhen has a “Volunteer Federation,” volunteers from all walks of life aspire to serve the community