wèi le / bǎo hù / bīn wēi / yǔ yán / jiào kē wén zǔ zhī / qǐ dòng le / xiāng guān / yán jiū / xiàng mù为了保护濒危语言,教科文组织启动了相关研究项目。To protect endangered languages, UNESCO launched a related research project.