背包英语
背包英语：
knapsack
短语搭配：
knapsack sprayer背负式喷雾器
例句：
She dumped her knapsack on the floor.
她将背包重重地往地板上一扔。
Chopstick sets complete with a simple or decorative case are sold at many stores and are easy to put in a purse, knapsack or briefcase, they note.
他们称带有简装或精装盒子的木筷套装则在许多商店销售，并且它们便于放在手包，背包或者公文包中。
The Cossack who accompanied Nesvitsky had handed him over a knapsack and a flask, and Nesvitsky was regaling the officers with pies and real doppel-kämmel.
伴随涅斯维茨基的哥萨克把背囊和军用水壶递过来，涅斯维茨基于是用馅饼和纯正的茴香甜酒款待军官们。
Jesse scraped away dirt from the root and placed it in the knapsack, lust as carefully, he buried the seeds to insure another harvest.
杰希刮掉上面的泥土，装进了背包。同样小心地，他把种子种进去，以获得下一次的收获。
To solve effectively for the different issues under knapsack constraint , we can adopt a different approach has reached its optimal solution to solve.
为有效解决背包约束条件下的不同问题，我们可以采取不同的方式，以达到求解其最优解。
