·2,447,543篇论文数据，部分数据来源于NoteExpress
colossal profits , windfall profit
Illegal sand excavation prompted by sudden huge profits often happens and become rampant, which causes new troubles as yellow sand is rich in the basin.
流域黄沙资源丰富，受暴利驱使非法采砂活动猖獗且不断呈现出新的特点。
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