to discover the main cause of a problem
выявить основную причину проблемы (vyiavit' osnovnuyu prichinu problemy)
"We need to get to the root of the problem before we can fix it."
"Нам нужно добраться до корня проблемы, прежде чем мы сможем ее исправить." (Nam nuzhno **dobrat'sya do kornya problemy**, prezhde chem my smozhem yeyo ispravit'.)
to relax and enjoy yourself freely
to do the same thing as someone else, especially online
the situation is improving
a police officer's regular patrol route
to raise and take care of children
the time or resources a startup has before it needs more fun...