contradiction of supply and need的用法和样例：
例句
- Developing production is a main means to solve the problems existing between supply and demand.
发展生产是解决供需矛盾的重要手段。 - However, the housing industry now is still at the stage of extensive growth with the great imbalance of demand and supply.
但是，我国住宅业仍然面临较大的供需矛盾，整个产业仍处于粗放增长阶段。
