卉峰呢喃
理论的英语：theory。
例句：
1、科学家对这个理论的态度是相当消极的。
Scientists have a fairly negative attitude to the theory.
2、这一对比表明理论和实践之间有相当大的出入。
The comparison shows considerable disagreement between theory and practice.
3、这一理论似乎没有事实根据。
The theory seems to have no basis in fact.
4、这一理论已为新近的研究所取代。
The theory has been superseded by more recent research.
5、只有零零星星的证据证实这个理论。
There is only fragmentary evidence to support this theory.
