单词	似在真空中
释义	似在真空中phr.in a vacuum似在真空中
随便看	economic development economic development administration 经济开发署 economic development forecast economic development plan economic development programme economic development， conflict between environment economic disintegration economic disparity economic dispatch economic dispatch (ed) economic dispatch{=ed} economic dispatching of interconnected power systems economic dispatching of power system economic distance economic downturn economic dualism economic, economical economic education economic effect economic effectiveness economic effects of advertising economic efficiency economic embargo economic energy potential economic entity