lump someone/something together
phrasal verb with lump verb informal uk/lʌmp/ us/lʌmp/
把…混到一块儿，把…合并在一起
to put different groups together and think about them or deal with them in the same way
All the children are lumped together in one class, regardless of their ability. 不管资质如何，所有孩子都被合并到一个班。