本书向广大青少年介绍有关气候与节气方面的知识，书中还有不少观察和实践的设计，青少年读者们可以亲自动手，提高自己的实践能力。( This book uncovers the mysterious veil of unsolved mysteries and explores bewildering scientific doubts. The book includes a lot of design on observation and practice, so the young readers can do it themselves to improve their practical ability.)