Something that is one of a kind and like no other thing is called unique.

VOA: special.2010.04.18

So Chinatown has a unique, not just the prices that are lower than other like, 5th Avenue,

所以，唐人街很与众不同，并不是因为那里的价格比像第五大道那样的地方便宜，

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It's, also... I think it's fairly unique in New York because it's almost like a shopping mall.

我认为它在纽约也是相当独特的，因为它简直就是一个大型购物中心。

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