Flat rate意思
"Flat rate" is a pricing term that means a fixed price for a product or service, regardless of the time or resources required to provide it. It is often used in situations where the cost of providing the service is not easily measured or where the provider wants to simplify pricing for the customer.
For example, a courier service might offer a flat rate for next-day delivery, regardless of the distance the package has to travel. A plumber might charge a flat rate for unclogging a drain, regardless of how long it takes.
In some cases, a flat rate might be based on an average cost, with the provider absorbing any additional costs if the service takes longer than expected. In other cases, the provider might include a clause in the contract allowing for additional charges if the service requires more time or resources than usual.