at no cost

基本解释

Schools and other educational institutions can access knowledge repositories directly at no cost and adapt content to their needs.
学校和其他教育机构可以不花钱就直接访问知识宝库并且改编内容满足他们的需要。
Using a few handy open source libraries, you can make your applications able to natively read DXF and DWG files on any operating system at no cost.
借助几个便捷的开源库，您的应用程序就可以读取任何操作系统上的 DXF 和 DWG 文件，并且不产生任何成本。
'Google also would be willing to provide, at no cost to third parties, the technical support necessary to make these plans happen, ' Mr. Whitt said.
威特说，谷歌也愿意提供必要的技术支持以实现这些计划，同时不会向第三方收取任何费用。

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.

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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