"become heavily" — Kollokationen-Wörterbuch Englisch

become heavily Kollokation
Automatische Übersetzung (wir garantieren seine Korrektheit nicht): stój się ciężko
  1. become Verb + heavily Adverb
    Schwache Kollokation

    The station also became heavily based in the 1970s playing only a few 1960s songs per hour along with about the same amount of 1980s hits.