词汇	洼地改造
释义	洼地改造 improvement of low-lying land洼地
随便看	emergency cord emergency cords emergency core cooling emergency core-cooling criteria emergency core cooling injection system emergency core cooling line emergency core cooling system emergency core-cooling system emergency coronary intervention emergency count emergency counter emergency countermeasure emergency countermeasures emergency coupler emergency coupler knuckle emergency coupling emergency coupling device emergency coupling screw emergency court of appeals emergency craft frequency emergency crash work emergency credit emergency credit assistance emergency crew emergency crews in yellow rain gear