To be extremely anxious or tense.
Быть чрезвычайно тревожным или напряженным. (Byt' chrezvychayno trevozhnym ili napryazhennym.)
"Before the presentation, she was a bundle of nerves."
"Перед презентацией она была комком нервов." (Pered prezentatsiey ona byla **komkom nervov**.)
to quickly assess someone or something
to learn or become skilled at something new
you shouldn't form an opinion on someone or something based...
to slowly become less close or connected over time
to become crazy or mentally unstable
to deal with a problem when it happens, not before
