conserve
[kənˈsɜ:v]
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基本释义：vt.保存，保护，节约，节省，守恒，不灭
英英释义：to keep and protect something from damage , change or waste
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| 参考例句：
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- 1. 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。
- 2. Conserve your energy, you'll need it! 保存你的精力，你会用得着的！
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