preservation and development

• 保护与发展

preservation and development的用法和样例：

例句

1. The strategy of protection and development of evergreen broadleaf tree is put forward, based on its ecological effects on four streams and one river in Zhangzhou.
   笔者就常绿阔叶林对福建漳州四溪一江生态效应，提出保护与发展的策略。