economy run汽车节油行驶竞赛economyn.经济；节约adj.经济的；廉价的economy mobilization经济动员economy in transition经济转型economy of rural area农区经济economy globalization经济全球化Economy growing point经济增长点Economy moral concept经济伦理economy modernization经济现代化economy of transition转型经济economy-class cabin经济舱economy security work经保工作