▎ 摘　　要

In this reply to R. Van Pottelberge, M. Zarenia, and F. M. Peeters's comment on our original paper, "Impurity spectra of graphene under electric and magnetic fields," we discuss the existence of bound states of a Coulomb impurity in graphene through the regular and irregular solution of the Dirac equation, and clarify its relation to the term "atom collapse" in our original paper.