In a world of negative yields, owning gold has no opportunity cost.
在一个收益率为负的世界，持有黄金无需付出机会成本。
As iron ore was plentiful in the world, its price was driven by production cost.
全球的铁矿石储量丰富，其价格主要是由生产成本决定。
That early celebration just cost you a world record.
这么早开始庆祝，世界记录没啦！
Even so, the World Cup would cost some public money.
即便如此，世界杯也得拨出些公款。
"It's one of the most cost-effective water treatment systems in the world," he says.
“这是全世界最省钱的净水系统之一，”他说。
The rest of the world may pay the cost.
世界其他国家可能为其埋单。
The cost of hosting the World Cup has been vast.
主办世界杯耗资巨大。
The question is that in the real world, transaction cost can never be zero.
问题是，真实世界里的交易费用绝不为零。
Committed to World Class Cost Management!
致力于世界级成本管理！
It is easy and low cost way to send and get information in real time from all over the world.
它是以方便和低成本的方式从世界各地发送和获取信息。
We do valuable, low-cost training and we also do some good for the world.
一方面，我们能以低成本进行有价值的培训； 另一方面，我们又能造福世界。
How much will it cost for a 30second AD in the football World Cup?
世界杯足球赛中播出一段30秒的广告要花多少钱？
How much will it cost for a 30second AD in the football World Cup?
世界杯足球赛中播出一段30秒的广告要花多少钱？
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