THREE:Another ramble on shore the following morning, and they left the soil[Pg 311] of Japan for the deck of the steamer. At noon they were slowly moving down the bay; they passed the island of Pappenberg, and, as they did so, Frank read from a book he had picked up in the ship's cabin the following paragraph:As they were studying the map to lay out their route westward, the boys noticed that the lines of the railways radiated in all directions from Chicago, like the diverging cords of a spider's web. Everywhere they stretched out except over the surface of Lake Michigan, where railway building has thus far been impossible. The Doctor explained that Chicago was one of the most important railway centres in the United States, and owed much of its prosperity to the network they saw on the map.
宝宝健康饮食是成长的关键，为了满足其生长发育所需要的各种营养，就必须对日常饮食做出合理安排。黄瓜和胡萝卜中含有丰富营养素，让宝宝吃得健康！
