̳ Ŀ ȣ ְû ְ߰ , ڻ 繫ó 15 Ͽ.
̹ ü Ű Ҹ ġ Ȱ ȭϿ ˷κ ָ , ǥ ȸ ְ߰ ȸ ȰϿ ȸ ڿ ȸ ϴµ ǰ ִ.
ȹ ΰ Ƹٿ , ũ(Big-Walk) ١ ó ū (ũ) ȴٴ ǹ̿ Բ, ˿ ȸ ȣ ΰ Ƹٿ ̾ڴٴ ǹ̸ ϰ ִ.
Ⱓ 4 1Ϻ 6 30ϱ 3, ְû Ӹ ƴ϶ ġܰ ù ´ü 2,823 ȹ̴.
1 1 6,000(ִ 10,000) 3 500,000,000(350,000km) ǥ ϰ , 0.1 Ʈ Ǿ, 500,000,000 ǥ Ŀݾ 5õ ְ߰翡 ĿѴ.
Ŀ ط ȸ ް ִ ڸ Ͽ 1 ִ 300 Ȱڱݰ б ڻ θ ̴.
ȣ ְû, ִ õ ڿ ڶϴ ÷ ݸ, ü 5 ñ ؾ ϸ鼭 ġ ε 䱸 ϱ Ȱ ȭϰ, ȸ ڴ١ , ̹ ϴ ũ(Big-Walk) Ͽ ˿ ֽ Ưġ߰ ֱ ֽ ڻ ڵ鿡 縦 ǥѴ١ .
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