| 单词 | packsack | 
| 释义 | packsacknoun  pack·sack  ˈpak-ˌsak     : a case (as of canvas) held on the back by shoulder straps and used to carry gear especially when traveling on foot   packsack nounas in backpack   a soft-sided case designed for carrying belongings especially on the back she spent weeks traveling across Europe and living out of a packsack   Synonyms & Similar Words Relevance     
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