必要交易品·必要交易品ヒッポドロームの建設hippodrome_constructionin_game/common/goods_demand/building_construction_costs.txt:173定義in_game/common/goods_demand/building_construction_costs.txt:173174masonry = 2.5175stone = 2176glass = 1177lumber = 1178marble = 0.5179category = building_construction