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sink hole
busin. 埋入孔
desert. 陷穴
geol. 落水洞; 溶斗; 喀斯特漏斗; 污水井; 阴沟口; 渗坑
met. 收缩孔; 凹陷
steel. 缩孔
sink-hole
ecol. 污水井; 阴沟口
sink -hole: 11 phrases in 3 subjects
Desert science1
Electronics1
Technology9