Goods, once they have been made, are assumed to move instantly and at no cost from place to place.

人们常常假定货物一旦被制造出来，就可以立即从一个地方转移到另一个地方，而不需要任何费用。

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Students use forums to chat, play games, and solve problems together at no cost, or they can pay a few hundred dollars to take courses with trained teachers.

学生们可以在论坛上聊天、玩游戏、一起解决问题，不需要任何费用，或者他们可以花几百美元参加受过培训的教师的课程。

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You'll be allowed the use of audiovisual equipment at no cost.

你可以免费使用视听设备。

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You'll have to register, but there's no cost. At the website you'll also get a hint about areas to watch for breakthroughs in the coming year, including America's human spaceflight program.

VOA: standard.2009.12.24

So, the optimal thing to do if you live in a world like this n is to get n as large possible and you can reduce the standard deviation of the portfolio very much and there's no cost in terms of expected return.

如果现实中也这样简单的话,那么你就尽量增大,这样就能让投资组合的标准差,就会大大降低,从预期收益率的角度来看,这样做的成本是零。

耶鲁公开课 - 金融市场课程节选

The irony is--these things cost like a dollar each now because no one needs them anymore.

具有讽刺意味的是，这些盘现在每个,只值1美元了因为。

哈佛公开课 - 计算机科学课程节选

Google is offering 100GB of storage on Google Drive at no cost for two years.

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Such a provider will install a solar panel array at no cost to the homeowner.

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Onity will provide mechanical caps for HT series locks at no cost to Marriott franchisee.

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