因为我有退休金，所以在费用持续上涨的时候我可以合理收费。
Because I have my pension I can charge students well below the going rate.
网站赚钱的策略也非常简单：他们会通过各种方式激励免费用户升级成收费合理的高级用户。
The monetization strategy is simple enough: Free users are given an array of incentives to upgrade to reasonably priced premium accounts.
有两个看似合理的理由驳斥反对增收费用。
正如早先提到的，很多人认为AT M交易的合理费用是根本不收费，这正是免费AT M所提供的。
As mentioned earlier, most people think that the proper fee for an ATM transaction is no fee at all, and that's what Free ATMs NYC delivers.
当收费服务很少，我将收取公平和合理费用后的时间和技能所需数额为基础。
When fee-based services are involved, I will charge a fair and reasonable fee based on the amount of time and skill required.
当收费服务很少，我将收取公平和合理费用后的时间和技能所需数额为基础。
When fee-based services are involved, I will charge a fair and reasonable fee based on the amount of time and skill required.
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