нелегкий
difficilior [ius];
sat
продуктивность
productivitas [atis, f];
тяготить
gravare [1] (officium
probus [a, um] ; probatus [a, um] ; vetus [e]ris (imperator); expertus [a, um] ; experimento probatus [a, um] / exploratus [a, um] ; experientia cognitus [a, um] ;