rucksack
柯林斯词典
1. N-COUNT A rucksack is a bag with straps that go over your shoulders, so that you can carry things on your back, for example when you are walking or climbing. 双肩背[英国英语]
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rucksack /ˈrʌkˌsæk/ (rucksacks)
剑桥词典
- a backpack noun
旅行包，背包（同 backpack） 返回 rucksack