而与此同时，不想付款给折扣软件的人，可以在网上为各种有版权的材料提供下载的地方找到流行软件的免费版本。
And people unwilling to pay for discounted software, meanwhile, can find free versions of popular products online that offer downloads to all manner of copyrighted material.
当然，这种做法会产生负面的外部性：免费下载音乐的人，不一定都会付款购买使用缺乏资源的部份。
It's certainly true that there are some externalities --where some people will enjoy the music for free without ever takingpart in paying for the scarce components.
您有3周的时间可以免费部署到Aptana Cloud，所以不必一开始就输入付款信息。
You can deploy to the Aptana Cloud free for three weeks, so you don't have to enter any payment information at first.
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