如今的美国，做好了更为充分的准备，同样，未来的危险不可能只通过表示胜利路或接受失败然后撤回美国的高墙之内来避免，超级大国在911之后有很多失误，入侵伊拉克显然是最大的一个。
The United States is better prepared today. All the same, future danger cannot be averted simply by declaring victory (or accepting defeat) and retreating behind a Great Wall of America.
商人在通过丝绸之路时，需要历经很多困难和危险。
Businessmen needed to go through many difficulties and dangers when they were passing the silk road.
然而，在第一天很多人会通过边境，但逃避一天一天变得更加危险。
However, during the first days many people could escape through the border but day by day it became more dangerous.
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