廉价的甚至免费的操作系统。
卫报甚至免费赠送“人类迷失祖先”的挂图。
The Guardian even gave away free wallcharts of "humanity's long lost ancestor."
该公司一惯的低价甚至免费服务的做法深得客户欢心。
The company’s habit of selling services cheaply or giving them away for free has endeared it to consumers.
they even have days that you can get in for free for family revisiting and you can go in.
如果你是举家再访,有时候你甚至能免费进去。
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