Before revision:  We establish two types of "macroscopic limits": the Kurtz limit is consistent with the classical chemical kinetics, while the L\'evy limit provides a theoretical foundation for an empirical equation proposed in [Phys.
After revision:  We establish two types of "macroscopic limits": the Kurtz limit is consistent with the classical chemical kinetics, while the L\'{e limit provides a theoretical foundation for an empirical equation proposed in [Phys.