单语范例（未经PONS编辑处理）
The labour cost depends upon what is happening to the demand and supply of labour in the economy.
www.moneycontrol.com The church does not have an electricity supply and therefore services are candlelit.
en.wikipedia.org In terms of bathing facilities, bathrooms require a bath or shower with an adequate supply of wholesome water.
en.wikipedia.org They are unable to climb out; the limiting factor is time as the teacher is enclosed in a suit with a finite oxygen supply.
en.wikipedia.org The supply and demand model is a partial equilibrium model where the clearance on the market of some specific goods is obtained independently from prices and quantities in other markets.
en.wikipedia.org