未来四年内预计会增加两倍，部分因为运营商从不限量套餐转向分级收费，用数据用得多的人将缴更高的费用。
It is expected to double over the next four years, partly because carriers are moving away from the unlimited plans and toward tiered pricing, in which those people who use more data will pay more.
未来四年内预计会增加两倍，部分因为运营商从不限量套餐转向分级收费，用数据用得多的人将缴更高的费用。
It is expected to double over the next four years, partly because carriers are moving away from the unlimited plans and toward tiered pricing, in which those people who use more data will pay more.
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