At the moment it is only a theory.
眼下,它还只是个理论而已。
It was a theory unsupported by evidence.
这是一条没有证据支持的理论。
A theory should be internally consistent.
一套理论应当内在一致。
The researchers had a theory. They thought that people who were bitten by infected mosquitoes,but recovered, were protected in the future.
VOA: special.2011.05.31
In other words, Brooks is not interested in developing a theory of the author or a theory of character.
换句话说,布鲁克斯不想展开对,作者或者角色的理论研究。
And he has a theory about early life and perfectly appropriate as far as one can tell of what pre-human form he studied.
他有一个有关早期生命的理论,一般人都会觉得很正常,他研究人类之前的生命形式没有什么不合适。
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