But in epimutations it doesn't get erased and gets passed on.

但是表观突变不会消失，而是一直传递。

Sometimes that methylation occurs on the paternal chromosome even when there's no imprinting center defect, and that's called an epimutation.

有时即使印记中心没有突变，父源染色体也可以发生甲基化，这一过程称为表观突变。