theory雅思造句
关于历史变革的新理论
Marx produced a new theory about historical change based upon conflict between competing groups.
相对论
Einstein formulated the Theory of Relativity in 1905.
个人对某事的观点或理论
If you have a theory about something, you have your own opinion about it which you cannot prove but which you think is true.
未经验证的理论
The theory remains untested.
需要进一步验证的理论
Is there any corroborative evidence for this theory？
理论与事实不符
Your theory does not square with the facts.