Rudy is officially Eris's tutor, but she doesn't want to learn anything but magic. As Rudy struggles to get her interested in other subjects, he realizes that non-stop lessons are causing her stress and proposes a day off in the city.
So you see, there are benefits
to knowing what things cost.
لذا كما ترين، فهناك فائدة
لمعرفة أسعار البضائع
Und so …
Como puedes ver…
Como veis, 
es bueno saber lo que cuestan las cosas.
Bref, c’est pour ça que parfois,
je me renseigne sur les prix.
Perciò, come potete vedere,
 conoscere i prezzi è molto vantaggioso.
Então, você viu como é bom 
saber quanto as coisas custam.
В общем, вся суть в этом.
- เอ่อ คุณชาย นี่นะ
- ก็ประมาณนี้ ถ้าเราศึกษาราคาไว้ก่อนมันจะทำแบบนี้ได้ด้วยครับ