他们去年背着背包在西班牙旅行。

They went backpacking in Spain last year.

《牛津词典》

你觉得背着背包去学校很“酷”。

You think it's "cool" to carry your backpacks and head out to school.

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背着背包的人和穿着米琪林绿色的导游倚靠着两边的墙壁，一纵排前后延伸。

People with backpacks and Michelin Green Guides hugged the walls on either side, parading single-file back and forth.

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