duricrust
n. [地质] 硬壳;铝铁硅钙壳
n.[地]硬壳,铝铁硅钙壳
criticise eject greenstuff lackadaisical poromeric production sophisticated下载迅蛙App
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n. [地质] 硬壳;铝铁硅钙壳
n.[地]硬壳,铝铁硅钙壳
criticise eject greenstuff lackadaisical poromeric production sophisticated