Tourism is important to the economic vitality of the region.旅游业对保持这个地区的经济活力很重要。Small businesses have a substantial role to play in keeping the economy buoyant.小企业在保持经济活力方面发挥了重大作用。The senator promised to restore the economic vitality of the region.参议员承诺要恢复该地区的经济活力。