1·The ranger slung the knapsack over his shoulder.
护林员把背包挂在他的肩膀上。
2·You can't exceed the volume that the knapsack can hold.
你不能超过背包的容量。
3·It's a list of the contents of the knapsack of a soldier during the Vietnam War, just a list of the contents.
这是越南战争期间一个士兵背包里的物品清单，只是一系列东西而已。
4·While serving a compulsory stint in the military, Nurmi entered a 20-k march carrying a rifle, a cartridge belt, and a knapsack.
在军中服义务役的时候，努尔米带着一支步枪、一条子弹带和一个背包参加了20公里行军。
5·You could construct all subsets, check that the weight is less than the weight of the knapsack, and then choose the subset with the maximum value.
你可以构建所有子集，检查重量是否小于背包的重量，然后选择最大值的子集。