Something may appear to be free of charge, but there may be a hidden cost.
有些东西看上去不用掏钱，但总有些隐含费用。
The only stipulation: The information has to be available free of charge, online.
唯一的前提是：信息必须是免费提供的在线信息。
We will repair or replace free of charge any non-moving part found to be defective.
我们会对有缺陷的非移动部件免费进行维修或更换。
Internet video junkies will be happy to know that Mux is totally free of charge.
网际网路视讯瘾会乐于知道多工器是完全免费的。
This volume shall be provided free of charge to official students (online study only).
本册教材正式学员(交纳学费者)免费在线使用。
This volume shall be provided free of charge to official students (online study only).
本册教材正式学员(交纳学费者)免费在线使用。
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