to arrive unexpectedly at a place
unerwartet an einem Ort erscheinen (unerwartet an einem Ort erscheinen)
"He turned up at my office without any notice."
"Er erschien ohne Vorankündigung in meinem Büro." (Er erschien ohne Vorankundigung in meinem Büro)
to move or change focus, method, or responsibility
to begin an effort to make yourself or something better
to increase the size, amount, or production of something
to gradually remove limitations on trade
to finish outstanding follow-ups before the day ends
to gradually increase emotional endurance