As Jumpei and Luou get used to the summer school class, they become involved in a friendly competition with some other boys from the class.
It took over ten years.
استغرق ذلك أكثر من عشر سنوات
Über zehn Jahre hinweg.
Por diez años.
Durante diez años.
Pendant plus de dix ans.
Ci sono voluti più di dieci anni.
Foram mais de 10 anos.
На это ушло больше десяти лет.