使用运行SKYPE或类似软件的智能手机不单可以免费打电话，还不用受运营商的条条款款限制。
A smart phone running Skype or something similar would be essentially free of usage charges and unfettered by all the restrictions that carriers impose.
使用运行SKYPE或类似软件的智能手机不单可以免费打电话，还不用受运营商的条条款款限制。
A smart phone running Skype or something similar would be essentially free of usage charges and unfettered by all the restrictions that carriers impose.
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