n.双肩背包
v.挑运；背包徒步旅行
Let me take my camera out of my backpack. 让我把相机从我的背包里拿出来。
My backpack is thin, but theirs are heavy. 我的背包是轻的，但他们的是重的。
We shall have to backpack supplies through the woods. 我们必须背负补给品穿过森林。
