Conny has developed some bad habits, including stealing food from the family. His relationship with Tazuki becomes strained.
I think he just memorized them like 
you would symbols or pictures.
.أعتقد أنّه يحفظها كأنّها رموز أو رسوم
Er hat sie sich wohl eher nur
wie Symbole oder Bilder gemerkt.
Creo que solo memorizó los símbolos.
Elle retient les mots
comme si c’étaient des dessins.
Penso che le abbia solo memorizzate come
faremmo noi con dei simboli o delle immagini.
Eu acho que ele só memorizou elas
como se memoriza símbolos ou figuras.
Наверное, запомнил слова как
 иероглифы или картинки.