He was delighted at the unexpected rapidity of his pupil’s progress, but could not abandon the edifice of argument he had laboriously constructed.
Tipsy and perspiring, with dim eyes and wide-open mouths, they were all laboriously singing some song or other.
Zaletaev, brought out with effort: "ke-e-e-e," he drawled, laboriously pursing his lips, "le-trip-ta-la-de-bu-de-ba, e de-tra-va-ga-la" he sang.
To this, modern history laboriously replies either that Napoleon was a great genius, or that Louis XIV was very proud, or that certain writers wrote certain books.
Here and there a couple of bees, by force of habit and custom cleaning out the brood cells, with efforts beyond their strength laboriously drag away a dead bee or bumblebee without knowing why they do it.
There are no more uses of "laborious" in the book.