If you exceed 5 gigabytes, you pay steep per-megabyte overage charges, or in T-Mobile's case, you get your Internet speed slowed down for the rest of the month.

如果超出了5 G，你将为超出部分按每M流量支付高得多的费用，或者按t - Mobile的方案，在该月的剩下时间里你将“享用”低速互联网。

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In any case, even as the CME has grown rapidly in recent years, it has steadily lowered the average fee it charges per contract.

不管怎样，甚至当芝加哥商业交易所在最近几年内快速增长的时候，它也稳定地降低对每个合约所收取的平均费用。

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The shift appears to have been driven at least in part by economics -- a top medical center in India charges about a tenth what a second-tier U.S. medical center would charge per case report, the authors said.

CNN: Growth of clinical trial outsourcing raises issues