同时，内容更新也通过软件升级以及基于控制台的更多在线服务作为卖点来帮助提高销售。
Content refreshes also have helped keep sales strong, with software improvements and more online services available through the console both serving as selling points.
《用Python思考》是《Python软件设计：怎样像计算机科学家一样思考》的在线版本，该书是《怎样像计算机科学家一样思考：学习Python》的更新版本。
Think Python is the online version of Python for Software Design: How to Think Like a Computer Scientist, which is an updated version of How to Think Like a Computer Scientist: Learning with Python.
软件更新的病毒定义和签字可以做到离线以及在线。
Software Update of Virus definitions and signature can be done both offline as well as online.
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