The Iwatobi High School Swim Club is participating in a joint training camp with the Samezuka Academy and Soufuukan High School teams. Sousuke is also participating as an alumnus. In the midst of the excitement, Rei and Nagisa notice that something is odd about Romio's swimming. Then Shizuru tells them the story of what happened to Romio in middle school...
I think he just doesn't want to make the 
same mistake again in high school.
أظنّه لا يريد فحسب أن يرتكب نفس الخطأ
مجدداً في المدرسة الثانوية
Er will wohl einfach nicht noch einmal
denselben Fehler auf der Oberschule machen.
Creo que no quiere cometer
el mismo error en preparatoria.
Creo que no quiere cometer
el mismo error ahora.
Romio ne veut pas échouer
une nouvelle fois au lycée.
Credo che voglia evitare fallimenti, al liceo.
Acho que ele não quer repetir o
mesmo erro agora no ensino médio.
Думаю, он просто не хочет повторить ту же ошибку в старшей школе.