the supply-demand relationship的用法和樣例：
例句
- Although sex is a unique commodity, it must still obey market principles of supply and demand.
雖然，性是一種特殊的商品，但它仍然要遵循市場供求關係的法則。 - On the basis of market supply and demand situation and our scarce land resources, land and benchmarking agreements transferring land price standards.
依據市場供求關係和我國土地資源的稀缺狀況，制定基準地價和協議出讓土地最低價標準。
