Is the water polluted at source?

河水是在源头受到污染的 吗 ?

《简明英汉词典》

Is the water polluted at source or further downstream?

河水是在源头还是在流出之后受到污染的?

辞典例句

Oil at source might rise 20 % in price.

原油的价格可能涨了20%.

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Tax deducted at source on interest or dividend payments to investors.

指应课税的收入,例如利息、股息或是薪金在发放时被扣下的税款.

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They are also commonly referred to as deductions at source.

通常也被称为从源头上扣除(直接从工资中扣除).

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This portion of agricultural products consumed at source by the peasants is enormous.

这个农民自给的部分,数量极大.

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