in a class of your own

Значение

much better than everyone else at something

Намного лучше всех остальных.

Примеры

1. 1As a pianist, Maria is in a class of her own; nobody at the academy comes close.
2. 2When it comes to homemade pizza, Leo's dad is in a class of his own.
3. 3The other runners were good, but Aisha was in a class of her own and finished two minutes ahead.
4. 4Their chocolate cake is in a class of its own – no other bakery in town comes close.
5. 5Is Ben really in a class of his own at chess, or has he just played weak opponents?

Грамматика

Обычно после be. your меняется по подлежащему: her, his, their, а о предмете — its.