由于通过他的无线网络电话网打电话的成本大大低于一般价格，利索斯能够以低于其他电话卡出售商的价格出售电话卡。
Because the calls originate on his Wi-Fi phone network with costs much lower than normal, Lissoos can undercut other phone card sellers on price.
youdao
你用网络电话是为了省钱还是其他的便利？
Do you use it to save money or for other advantages?
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