she dumped her knapsack on the floor.
她将背重重地往地板上一扔。
she dumped her knapsack on the floor.
她将背重重地往地板上一扔。
Will my sweater go in your knapsack?
你的背放得下我的球衣吗?
After a short rest,they took up their knapsacks and went on.
休息了一会儿之后,他们又背起背上路了。
Bintree use, simple knapsack problem, is my data structure beginner operations,
二叉树运用,简单背问题,是本人初学数据结构的作业,
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