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laborious adjective

  /ləˈbɔːɹiəs/
  • Requiring much physical effort; toilsome.
 laborioso

laboriously adverb

  /ləˈbɔɹ.i.əs.li/ , /ləˈbɔː.ɹi.əs.lɪ/
  • With great expenditure of effort, in a manner requiring much labor.
 faticosamente

laboriousness

laboriosità
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