| 词汇 | rucksack |
| 释义 | ruck·sackBrE /ˈrʌksæk/ NAmE /ˈrʌksæk/ (BrE ) (also back·pack NAmE , BrE ) noun a large bag , often supported on a light metal frame , carried on the back and used especially by people who go climbing or walking （尤指登山者或远足者使用的）背包，旅行包 |
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