Knapsacks Problem 背包问题
Laptop Knapsacks 电脑包
trapdoor knapsacks 陷门背包
Sporting Bags incl Knapsacks 运动袋包括背囊
N-COUNT A knapsack is a cloth or leather bag that you carry on your back or over your shoulder, for example when you are walking in the countryside. 背包
After a short rest, they took up their knapsacks and went on.
休息了一会儿之后，他们又背起背包上路了。
With heavy knapsacks on their backs, the explorers plodded on their way up the snow-covered mountains.
的翻译是：他们背上沉重的背包，拖着深重的探险者的上的白雪皑皑的山上。
When she entered the kitchen, Robert Kincaid was repacking the knapsacks , neatly and precisely, she noticed.
她回到厨房时，罗伯特金凯正在重新打背包，她注意到打得十分整齐、准确。
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