When booking a hotel room, what did the reservation staff say (including breakfast and fund, what is the fund?

Fund? I haven't heard of it. I don't think there will be such a title. Maybe you didn't hear clearly.

General high-end hotel prices include the following items: room rate, service fee and breakfast; Depending on the hotel level and guest benefits, it may also include a gym, free drinks and swimming.

So there will be no such thing as a fund.