"gradually earn" — Kollokationen-Wörterbuch Englisch

gradually earn Kollokation
Automatische Übersetzung (wir garantieren seine Korrektheit nicht): stopniowo zarób
  1. earn Verb + gradually Adverb
    Schwache Kollokation

    He gradually earned a fortune and ultimately became a shipping magnate- the system he probably learned from his experience on the Chenango.