"personally challenging" — Kollokationen-Wörterbuch Englisch

Automatische Übersetzung (wir garantieren seine Korrektheit nicht): osobiście wyzywając
  1. personally Adverb + challenging Adjektiv
    Schwache Kollokation

    The Congressional Award provides an opportunity for young people to set and achieve personally challenging goals that build character and foster community service, personal development, and citizenship.