三个互相替代但在许多方面有互补性的理论于1971年提出。
Three alternative but in many ways complementary theories were put forth in 1971.
他们说,将两者视为可互相替代或者互相交换的想法都是错误的。
It would be wrong, they say, to see the two types of software as substitutes for another or as interchangeable.
税与费是两个不同的概念,各有不同的作用和范畴,不能互相替代。
The tax and fee are two different concepts, function and category of having nothing in common with each other, Can't substitute each other.
If both these firms are producing bottled water and it's identical, then the goods themselves are substitutes.
如果两家公司生产同质的瓶装水,那么它们的产品是可以互相替代的
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