to relax and enjoy oneself freely
расслабиться и наслаждаться свободно
"After the project ended, we all went out to let our hair down."
"После завершения проекта мы все вышли, чтобы расслабиться."
to start fresh or make a new beginning
to reach the desired standard or level
in a difficult situation where any choice you make will have...
to start over again because the previous plan failed
to make a difficult decision or endure something unpleasant
to be sensible and intelligent