翻译以下段落。 1. When you book a package holiday, you buy a combination of two or more different types of travel services for the same trip or holiday. These services can include transport, accommodation, car hire, or under specific conditions any other tourist service. Your package may be pre-arranged – consisting of a number of services combined by a tour operator or travel agent – or you may have a more customi z ed package by choosing the services yourself before the contract is concluded. In both cases, EU rules apply as long as your travel package was purchased in a certain way.