Sachi is worried about Hiro, so she brings Erika along to follow her and learn about her.
the uniform cost, the transit cost, 
the learning materials...
...ثمن الزيّ المدرسي، تكلفة النقل، مواد التعلّم
wären da noch Uniform-,
Fahrt- und Lehrmittelkosten.
il faut payer l’uniforme,
les transports, les cahiers,
i costi per l'uniforme, per i mezzi pubblici
e per i materiali...
ainda terá os custos de uniforme,
transporte, materiais escolares...
форма, проезд и учебники
очень дорогие.