conserve

🇬🇧/kənˈsɜːv/ 🇺🇸/kənˈsɜːrv/📚 8084 70 2四级六级考研托福雅思
If you conserve a supply of something, you use it carefully so that it lasts for a long time. 节省

verb [vt. 及物动词]保护,保存;节省,节约;使(量,如能量、质量)守恒;将…制成蜜饯

To conserve something means to protect it from harm, loss, or change.
保护

noun [具体名词]蜜饯,果脯

Foods are dehydrated to conserve them for future use.
把食物脱水弄干贮藏以备将来食用。

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