To be very close friends
Быть очень близкими друзьями (byt ochen blizkimi druz'yami)
"They've been thick as thieves ever since childhood."
"Они были неразлучны с самого детства." (oni byli nerazluchni s samogo detstva)
to be caught in the act of doing something wrong
to speak at length in an excited or annoyed way
the most important point; the final result or profit
a balance between two conflicting or competing factors
to greet someone
to be tough in making a deal or negotiation