很明显，像这种方式的旅行需要三件事：有冒险精神、有组织能力，这是穿过申请签证的地雷阵所必须的，当然，还需要一个鼓鼓的钱包。
Obviously, a trip of this type requires three things: a sense of adventure, the organisational skills required to sort out the minefield of visa applications and, of course, fairly deep pockets.
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