不明确

The import of his statement is ambiguous.

他叙述意思不明确。

The sense of the word is not clear.

这个词意义不明确。

The evidence from bacteriologic analysis was equivocal.

这一细菌学分据是不明确。

When you are befogged ,it is impossible to have a clear judgement.

当你睡得迷迷糊糊时候，不能有明确判断。

But diffeomorphism invariant theory leaves some problems to be explained, and the meanings of spacetime and physical theory are still in question.

但微分同胚不变理论存在释问题，空时及物理理论意义仍不明确。