They receive a fixed rate, which is typically about $825 for a standard four-hour vocal session.
他们的收费是固定的，一般来说，一场标准的四小时演讲收费约为825美元。
2
Instead, they receive a fixed rate, which is typically about $825 for a standard four-hour vocal session.
相反，他们会得到固定的费用，通常一节标准四小时声乐课的费用是825美元。
3
It took the Amazon S3 development team one hour to verify the outage, and they didn't respond again until the problem was fixed a couple hours after that.