conserve [kənˈsɜ:v]

以下由轻松背单词网站提供

vt.保存，保护，节约，节省，守恒，不灭

to keep and protect something from damage , change or waste

He writes on both sides of the sheet to conserve paper. 他在纸张的两面都写字以节省用纸。
Conserve your energy, you'll need it! 保存你的精力，你会用得着的！