backpack
1914 as a noun, 1916 as a verb, from back, n. + pack, n.. Related: Backpacked; backpacking.
| 词汇 | backpack |
| 词根词缀 | Online Etymology Dictionary backpack 1914 as a noun, 1916 as a verb, from back, n. + pack, n.. Related: Backpacked; backpacking. |
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