这位保护主义者致力于阻止开发商拆除这座百年老宅。

The ___preservationist worked hard to stop developers from tearing down this century-old house.

作为一位文化遗产保护者，他致力于拯救濒临消失的传统手工艺。

As a cultural ___preservationist, he works to save endangered traditional crafts.