| 例句 |
conservationsnounpl. of conservation the careful maintaining and protection of something valuable especially in its natural or original stateeveryone has a duty to aid in the conservation of our nation's wilderness areas conservancies, preservations, sustentations care, maintenances, upkeepssalvations, savingsdefenses, guardianships, protectionseconomies, husbandries, managements derelictions, neglects, wastesdestructions, ruinsdamages, harms, hurts, injuries |