Gamma-ray spectra of EIC and SSC emission in the late internal dissipation emission model at T = 10 ^2.6 s (thin) and T = 10 ^3.6 s (thick), but the source redshift is taken as z = 1. Source parameters are the same as that used in the caption of Figure 3. The EBL attenuation is included in EIC and SSC, but not included in EIC (intrinsic) and SSC (intrinsic). One can see that it is crucial for detections by Cherenkov telescopes.