外架包价格不是很贵，而且填装背包也比较方便。
The outer frame package price is not very expensive, but also more convenient to fill backpacks.
假如你个人的座右铭是“一个地方可以放所有的东西，所有的东西都在自己的位置，”找一个有大量口袋的外架包。
If your personal motto is "a place for everything and everything in its place," look for an external frame style with lots of pockets.
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