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.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Мы можем выполнить ее шаг за шагом, какой бы длинной ни была дорога, и она не может быть завершена, какой бы короткой ни была дорога, если вы даже не обозначите свой след.