to set a limit or boundary
tracer une limite ou une frontière (tracer une limite ou une frontière)
"You have to draw a line between work and personal life."
"Vous devez tracer une limite entre le travail et la vie personnelle." (Vous devez tracer une limite entre le travail et la vie personnelle.)
to thoroughly investigate or explore something
to form an opinion based on appearance only
To continue practicing a custom so that it is not forgotten
without any logical reason to doubt; with full certainty
to do something extremely well
to perform well in a difficult situation