Here follow ten candidates for the title of "hardest language to learn," as released by the UnitedNationsEducationalScientificandCulturalOrganization.
下面就是竞争“最难学语言”的十门候选语，该名单由联合国教科文组织发放。
2
Under the UnitedNationsEducational, ScientificandCulturalOrganization (UNESCO) convention of 1970, countries agreed measures to prevent the illegal export of national treasures.
根据联合国教科文组织1970年的协定，各国应该按照章程防止国家财产的非法出口。
3
In 2005, Lake Tekapo handed in an application to the UnitedNationsEducational, ScientificandCulturalOrganization (UNESCO) to make its starry night sky a listed world heritage site.