No need for additional equipment, no monthly fee, no additional cost.
无须附加设备，无月费，无额外用度。
Except for your monthly internet service fee, there is literally no cost for making these calls, no matter how many you make.
除了你每月上网服务费，但这些费用并没有字面上通话不管你作多少。
Many cellphone plans don't include free text messaging, and since you pay a monthly fee no matter how few calls you make, it's easier just to make the phone call.
而且，不管你打没打电话，每月也得交固定的费用，手机只是使打电话变得更容易一些。
Many cellphone plans don't include free text messaging, and since you pay a monthly fee no matter how few calls you make, it's easier just to make the phone call.
而且，不管你打没打电话，每月也得交固定的费用，手机只是使打电话变得更容易一些。
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