英 [ˌθɪəˈretɪkl] 美 [ˌθi:əˈretɪkl]
形容词理论的; 推想的，假设的; 空论的
1. The government and central bank were in theoretical harmony.
1. 理论：实际上,如果考虑电影的艺术(artistic)、理论(theoretical)与技术(technical)层面(aspects),通常使用film一词,例如在大学课堂上. Movie一词更多地指电影的娱乐(entertainment)与商业(commercial)层面(aspects),例如在约会中.
2. 理论化学：. . Physical | 物理化学 (2007) | . . Theoretical | 理论化学(2007) | Computer Science | 计算机科学 (2008)
A theoretical study or explanation is based on or uses the ideas and abstract principles that relate to a particular subject, rather than the practical aspects or uses of it.
e.g. ...theoretical physics.
If you describe a situation as a theoretical one, you mean that although it is supposed to be true or to exist in the way stated, it may not in fact be true or exist in that way.
e.g. This is certainly a theoretical risk but in practice there is seldom a problem...
e.g. These fears are purely theoretical.
1. concerned primarily with theories or hypotheses rather than practical considerations
e.g. theoretical science
2. concerned with theories rather than their practical applications
e.g. theoretical physics