0 to behave in a dishonest or cruel way to someone who trusts you -- предавать
1 If you betray your country or an organization, you give secret information to its enemies or to other organizations. -- предавать
2 to show an emotion that you were trying to hide -- выдавать
Her face was calm, but her hands betrayed her nervousness.
They report that the civilian population of the annexed province has outrageously betrayed them.
The basic account of molluscan biology is fair enough but betrays a lack of real understanding of the matter.
In this resistance, the latent again betrays the blatant.
You betrayed the trust we placed in you when you came and built your churches, when you started to convert.
All too often he betrays his urgent themes in pretentious passages of self-display.
The text betrays horrible over-generalization, incorrect spelling of taxonomic names and factual errors.
While central or focal cases may betray no naming difference, borderline cases for natural kinds and colours do.
Thus, for example, while my visual perception can betray me, my imaginative consciousness cannot.
