conserved
柯林斯词典
1. V-T If you conserve a supply of something, you use it carefully so that it lasts for a long time. 节省
The factories have closed for the weekend to conserve energy. 这些工厂在那个周末关了厂以节省能源。
2. V-T To conserve something means to protect it from harm, loss, or change. 保护
...a big increase in U.S. aid to help developing countries conserve their forests. …美国对帮助发展中国家保护森林的援助的大幅增加。
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