何谓湿地，在水一方；蛙鸣鸟叫，跃入其中；百草丰茂，沉潜于此；荷叶田田，观之采之；书中湿地，脍炙人口；未曾觉察？展之以阅。

What is wetland? It is an area of land covered or saturated with water. On the wetlands, frogs croak, birds sing, plants and grasses grow luxuriant and lush, like the lotus plants, thriving as a pretty sight and for practical harvest. Wetlands are often depicted in the books and pictures. If you haven’t been able to fully appreciated the beauty of wetland yet, please open this book to find it out yourself.