less-development的用法和樣例：
例句
- Medium-sized and small enterprise clusters promote economic and social development in undeveloped areas.
中小企業(yè)集群促進(jìn)欠發(fā)達地區的經(jīng)濟社會(huì )發(fā)展。 - 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。
