improper fee

• 不正当的酬金；不当收费

improper fee的用法和样例：

例句

1. I'm afraid I can't afford the doctor's fee.
   恐怕我付不起给医生的酬金。
2. The fee they are offering bears no relation to the amount of work involved.
   他们支付的酬金和所需的工作量无关。