Đặt câu với từ "little-known"

1. The system was little known in Europe before the distinguished mathematician Leonardo Fibonacci (also known as Leonardo of Pisa) introduced it in 1202 in Liber abaci (Book of the Abacus).

Le système resta peu répandu en Europe jusqu’à ce que le grand mathématicien Leonardo Fibonacci (également appelé Léonard de Pise) en fasse l’éloge en 1202 dans son Liber abaci (Livre des abaques).