Here follow ten candidates for the title of "hardest language to learn," as released by the United Nations Educational Scientific and Cultural Organization.

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。

youdao

Under the United Nations Educational, Scientific and Cultural Organization (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。

youdao

In 2005, Lake Tekapo handed in an application to the United Nations Educational, Scientific and Cultural Organization (UNESCO) to make its starry night sky a listed world heritage site.

2005年，特卡波湖向联合国教科文组织提出申请，把特卡波湖星空列为世界遗产。

youdao

In nineteen seventy-eight, the islands were the first place named to the World Heritage List by the United Nations Educational, Scientific and Cultural Organization.

VOA: special.2009.12.16

Representatives of the United Nations, the United Nations Educational, Scientific and Cultural Organization, the Food and Agriculture Organization of the United Nations, the World Health Organization and the World Meteorological Organization may take part, without the right to vote, in all meetings of the Council, of its committees and of its working groups.

UNESCO: Detailview | United Nations Educational, Scientific and Cultural Organization

This interdisciplinary initiative is jointly established and scientifically sponsored by an alliance that includes the International Council for Science (ICSU), the International Social Science Council (ISSC), the Belmont Forum, the United Nations Environment Programme (UNEP), the United Nations Educational, Scientific and Cultural Organization (UNESCO), the United Nations University (UNU), and strongly supported by the World Meteorological Organization (WMO).

UNESCO: NATURAL SCIENCES

The workshop on Seismicity and Earthquake Engineering in the Extended Mediterranean Region will be hosted by the University of Malta, and sponsored by the United Nations Educational, Scientific and Cultural Organization (UNESCO) and the U.S. Geological Survey (USGS).

UNESCO: Post-Conflict and Post-Disaster Responses