✔ 最佳答案
These explorers with legendary experience depend on their outstanding willpower, know this gate of the earth where we lived after opening people, has opened the main road for the development of the human civilization. From the explorers, we not only can obtain many relevant geographical knowledge of exploration, but we can also learn how to strengthen calmly, be brave to sacrifice and see clearly the dogged spirit that the goal persisted.
希望幫到你啦! =)