to withdraw from an agreement or commitment
отказаться от соглашения или обязательства (otkazatsya ot soglasheniya ili obyazatel'stva)
"He backed out of the trip at the last minute."
"Он отказался от поездки в последний момент." (On otkazalsya ot poezdki v posledniy moment)
to do something while waiting
to release someone from blame or punishment
a plan or structure that is weak and likely to fail
to remain hopeful and optimistic about the future
a person who is always busy and active
under pressure to perform or complete something