Your neighbour class(es).
For example, there are 5 classes (A, B, C, D, E) in secondary school form 1. You are in Class 1B, then 1A, 1C, 1D, 1E are your neighbour classes.
The classes located next door (1A, 1C) certainly are your neighbour classes, other classes in the same form (even not located on the same floor) are also your neighbour classes. But if it is not the same form, e.g. Class 2A is located next door to you, it is not considered a neighbour class.
Как говорить по-русски в разговор? Например, девочка скажет подруге о ёё любви.
"Мне нравится парень в параллельном классом. Он очень красивый, симпатичный и умный."
??
arthurchiliad
For example, there are 5 classes (A, B, C, D, E) in secondary school form 1. You are in Class 1B, then 1A, 1C, 1D, 1E are your neighbour classes.
The classes located next door (1A, 1C) certainly are your neighbour classes, other classes in the same form (even not located on the same floor) are also your neighbour classes. But if it is not the same form, e.g. Class 2A is located next door to you, it is not considered a neighbour class.
"Мне нравится парень в параллельном классом. Он очень красивый, симпатичный и умный."
??
и "Как сказать по-русски в разговоре"