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同义词： backpack back pack knapsack rucksack haversack
以上来源于: WordNet
N a bag carried strapped on the back or shoulder 背包 (Also called (in Britain and certain other countries) knapsack) [美国英语]
I want to carry this pack sack by myself.
这只旅行背包我想自己随身携带。
youdao
When he came to his pack, he paused long over the squat moose-hide sack, but in the end it went with him.
当他收拾背包时，又为那只鹿皮口袋停顿许久，不过最终还是带上了它。
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