less-developed district的用法和樣例：
例句
- It is right to establish economic cooperation between developed and less developed areas.
在發(fā)達地區和相對欠發(fā)達地區搞經(jīng)濟協(xié)作區，這是對的。 - Developed regions should assist and stimulate the development of underdeveloped regions in various ways.
發(fā)達地區要采取多種方式幫助和帶動(dòng)欠發(fā)達地區。
