中国正式推出铁矿石价格指数

词汇讲解：

1. track vt. 跟踪;追踪
例句：It was not long before I tracked down the lost wallet.
不久我就找到了遗失的钱包。

2. trail n. 痕迹;踪迹;足迹
例句：The hounds found the trail of the fox.
猎犬发现了狐狸的踪迹。

3. output n. 产量
例句：Grain output reached a new high in the three years.
谷物产量达到三年中最高水平。

4. squeeze v. 挤, 榨, 捏
例句：This only gave them opportunity to squeeze profits.
这只能为他们提供机会榨取利润。

5. consumption n. 消费, 消耗; 消费[耗]量
例句：Consumption of oil has declined in recent years.
石油消耗量在最近几年下降了。

6. imminent adj. (通常指不愉快的事)即将发生的, 逼近的，临近的
例句：The black clouds show that a storm is imminent.
乌云预示暴风雨即将来临。

7. surge vi. 猛冲;激增
例句：Prices kept surging.
价格不断猛涨。

8. bargain v. 讨价还价; 商谈
例句：In some shops you have to bargain.
在一些商店中买东西要讲价。

9. monopolize vt.垄断, 独占;专卖, 专营
例句：An electric power company monopolizes the power supply in this area.
一家电力公司垄断了该地区的电力供应。

10. monopoly n. 垄断, 专卖
例句：His monopoly of shipbuilding in that country has been established.
他对那个国家造船业的垄断已经建立起来。