Can the resort hotel order a US group takeaway at the hotel?

You can order takeout, but generally five-star hotels don't deliver takeout, because it involves food safety and the hotel itself has a restaurant, so in any case, the hotel doesn't allow employees to deliver meals to the rooms. If you really don't want to take it yourself, you can ask the concierge to send it, but only if you tell the concierge in advance that you will tip; Some of them are strictly managed and can only be taken by themselves.