ISBN: 9787511108272 - 我画了一棵树 (1 resultados)

paperback. Condición: New. Paperback Pages Number: 36 Language: Chinese. I know! Children's environmental science series comic book: I drew a tree for the children's environmental science series comics. Forests can regulate climate. purify water. soil and water conservation. windbreak and sand; trees to beautify the environment. and to provide mankind with food and clothing raw materials. fuel and building materials and other necessities. Trees is a natural oxygen generator. air filter. Summer. it can cover the hot sun. …