There is great competition between different manufacturers of the same kind of product to persuade c

There is great competition between different manufacturers of the same kind of product to persuade c

题目
There is great competition between different manufacturers of the same kind of product to persuade customers to buy their own particular brand
上面是原句.
我不明白为什么不是 there is a great competition.要不是就是competiton后加S,但是原句是那么写的.我就不懂了,赐教、
答案
当竞争这个意义的时候,是不可数名词.当比赛是可数名词.
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