preserve

/prɪˈzərv/

keep or maintain in unaltered condition; cause to remain or last

Chinese meaning: 保存；保护；维持

The government has taken measures to preserve the ancient forest from logging.

政府已采取措施保护这片原始森林免遭砍伐。

It is important to preserve historical documents for future generations.

为后代保存历史文献很重要。