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jarvinia奈奈
reclaimed materials [词典] [经] 回收料，再生料; [例句]The building also used reclaimed materials extensively, including siding from a barn.该建筑还利用回收材料广泛，包括从谷仓壁板。
miss.w\^O^/
raw and processed materials
Yun云2870
raw material
周大侠go
material 今年刚教过……o(∩_∩)o
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