Methanol abundance maps for the envelope-only (left) and envelope-plus-disk (right) models when the envelope mass is 5 M_⊙ and the other parameters are the same as the fiducial model. The top row shows the models with low mm opacity grains, and the bottom row shows the models with high mm opacity grains. The photodissociation regions for M_E = 5 M_⊙ models are very small, and they are similar in models with low and high mm opacity grains, which is different from the fiducial model in Fig. 4.