based on theories or ideas instead of practical experience 基于理论的 | The course is designed to be practical rather than theoretical. 该课程旨在实际应用，而不是讲理论。 |
| | a | relating to theories or ideas 理论的 | | the theoretical framework of the research 研究的理论框架 | |
| | b | theoretical physics and chemistry deal with theories and calculations rather than experiments （物理和化学）理论的 | |
| | c | used about something that is based on ideas and is not real or important 理论上的；假设的 | | Britain’ s control of the territory remained largely theoretical. 在很大程度上，英国只是理论上占有该地域。 | |