Most of these countries are the world’s least developed countries, landlocked developing countries and small island developing countries.

这些国家当中，大多数是世界最不发达国家、内陆发展中国家和小岛屿发展中国家。

Most landlocked developing countries face specific constraints imposed by geography.

大部分内陆发展中国家面临特殊的地理限制性条件。