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。
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。
Through exercise, she has found that her breathing and vocal range can be extended to last an entire concert or recording session.
通过练习，她发现她的呼吸和音域被训练到可以持续整场演唱会或整个录音过程。
Through exercise, she has found that her breathing and vocal range can be extended to last an entire concert or recording session.
通过练习，她发现她的呼吸和音域被训练到可以持续整场演唱会或整个录音过程。
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