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Low-cost prepaid cellphone plans have proven increasingly popular .

低价预付费手机合约计划越来越受欢迎了。

Get a prepaid cellphone or use a payphone .

弄一部预付费手机，或使用付费电话。

Prepaid billing saves operators sending out bills and chasing up debts .

预付费系统节省了运营商发送账单以及追索债务的费用。

Get a prepaid credit card - don 't use your normal one .

用预付信用卡不要用你平常用的那一个。

Special prepaid college savings plans are being squeezed by low investment returns and big tuition increases .

低投资回报和学费的大幅度上涨使该专有的预付款大学储备金计划正在缩水。