在中国狂暴的商品购入盛宴几乎接近十年的时刻，大型采矿公司的老板们开始讨论开采各式矿藏所面对的越来越多的问题。
Nearly a decade into China's rampant commodity-buying spree the bosses of the big mining companies are starting to talk about the growing problems getting all manner of minerals out of the ground.
随着价格的下降，消费者1开始购入商品，这时的市场需求量比任何一个个体消费者的需求量都要大，而且是这两个消费者需求量的总和。
As the pricefalls, consumer 1 begins purchasing, and the market quantity demanded is largerthan either individual participant’s quantity, and is the sum of the twoquantities.
在先进先出法下，假设企业首先销售最早购入的商品，期末存货按最近的购货价格计价。
Under the first-in, first-out method, it is assumed that the first units acquired are the first ones sold; ending inventory is valued at the most recent purchase prices.
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