Aoki tells Yushi that he must be suffering without his parents, even though he isn't.  She has good intentions, but Yushi is frustrated by her inability to see who he really is, and insistance that he has to be what she thinks he is.
The important thing is that 
you hear the English.
المهم سماعكم للإنجليزية
Wichtig ist,
dass ihr Englisch hört.
Lo importante
es que lo escuchen en inglés.
Lo importante
es que lo escuchéis en inglés.
la cosa fondamentale
 è ascoltare il suono dell'inglese.
O importante é ouvir em inglês.
Главное — послушать 
английское произношение.