秋意凉漠
开发kāi fādevelop; open up; exploit; developing; exploitation:开发和推广科技成果 develop and disseminate research findings开发人才资源 develop human resources开发山区 develop mountain areas开发实业 open up industries开发油田 open up oilfields开发地下宝藏 tap underground resources开发新产品 develop new products开发沿海石油 exploit offshore oil deposits开发中心 development centre水力开发 water power development国土开发 land development in the country智力开发 mental development
