重点词汇
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下等
low-grade; inferior; lower class
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原料
raw material; material; feedstock; ingredient; stock; staple; crude material
中英释义：
下等原料
时间: 2026-01-20 08:31:51
inferior raw material
中英释义：
inferior raw material
下等
low-grade; inferior; lower class
原料
raw material; material; feedstock; ingredient; stock; staple; crude material