Under Kakashi's watchful eye, Boruto succeeds in powering up his own style of Rasengan. And he demonstrates his progress in a battle against an opponent of Kakashi’s choosing. Meanwhile, Sasuke and Sakura switch places to train their daughter. With firm resolve, Boruto and Sarada continue their training and begin to see the results of their hard work.

He's been training nonstop
since yesterday.
.كان يتدرّب دون توقّف منذ البارحة
Er hat sich seit gestern
kräftig ins Zeug gelegt.
Lleva entrenando duro desde ayer.
Lleva entrenando duro desde ayer.
A quanto pare, 
è da ieri che si impegna al massimo.
Ele está treinando
sem parar desde ontem.
Как я понял, он со вчерашнего дня
тренировался.