From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
labouring /lˈeɪbəɹɪŋ/
schwer arbeitend, schuftend, rackernd
Synonyms: working hard, laboring, slaving away, toiling, toiling away, moiling, drudging, travailing
see: work hard, labour, labor, slave away, toil, toil away, moil, drudge, travail, worked hard, laboured, labored, slaved away, toiled, toiled away, moiled, drudged, travailed