to feel sad or complain about something that has already happened
чувствовать грусть или жаловаться на что-то, что уже произошло (chuvstvovat' grust' ili zhalovatsya na chto-to, chto uzhe proiskhodilo)
"There's no point crying over spilled milk."
"нет смысла плакать по поводу пролитого молока" (net smysla plakat' po povodu prolitogo moloka)
to tell honest truths to those in authority
to try to ignore disagreements and restore peace
to review or look again at online updates or messages
to accept a mistake or flaw that cannot be changed
to follow a plan strictly without giving up
to keep an optimistic attitude
