Senpai, Nagatoro and their classmates go skiing. Nagatoro is a good skier, but Senpai doesn't fail to disappoint.
Don't count your chickens, et cetera.
لا تعوّل على شيء جيّد قبل حدوثه، إلخ
Man soll den Tag ja nicht
vor dem Abend loben.
No bajaré la guardia.
No bajaré la guardia.
Je ne crie pas victoire trop vite.
Mai cantare vittoria, eccetera.
Não conte com os ovos dentro da galinha.
Почивать на лаврах ещё рано.