常見例句雙語例句The forestry ecology construction is a magnificent social system engineering.林業(yè)生態(tài)建設是一項宏偉的社會系統(tǒng)工程。As a complex ecological engineering, returning cropland to forestry and grass (RCFG) is related to the social and economic sustainable development of different regions.退耕還林還草是一項復雜的生態(tài)系統(tǒng)工程，關系到社會、生態(tài)和經濟的可持續(xù)性發(fā)展。 返回 social forestry engineering