Light curves of early and late jets in the late dissipation model at various energy bands. Syn and SSC come from synchrotron and SSC emission by relativistic electrons accelerated at the external shock of the early jet. LP represents the assumed seed photon emission from the late jet, which is responsible for shallow-decay X-ray emission, and EIC is the EIC emission by Compton scatterings of late prompt photons by electrons accelerated at the external shock. The parameter set is the same as that used in the caption of Figure 4. Note that the attenuation by pair creation both inside and outside the source is taken into account.