And since we released it about three or four years ago, a lot of websites have started switching from the old CAPTCHA, where people wasted their time, to the new CAPTCHA where people are helping to digitize books.
de nombreux sites ont changé du vieux CAPTCHA qui faisait perdre du temps au gens au nouveau, grâce auquel les gens aident à numériser des livres. Par exemple, Ticketmaster.