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gravel pit 碎石坑,碎石采掘場。

gravel road

I could have made dust clouds at that gravel pit for the rest of my life and been happy 我也許可以在塵土飛揚的賽車場上幸福快樂地度過我的余生了。

The analysis of the influence of the degan gravel pits on riverbed development 長江上游德感壩采砂坑對河床演變影響分析