Our roads were never designed for such a heavy traffic.

Our roads were never designed for such a heavy traffic.such heavy traffic 还是 such a heavy traffic?

热心网友

应该是such heavy traffic，因为traffic是不可数名词

热心网友

我认为应该加上a

热心网友

我认为不应该加上a，因为你前面的ＳＵＣＨ修饰的是ＨＥＡＶＹ，而不是ＴＲＡＦＦＩＣ

热心网友

我认为应该是前面加上a，因为heavy是个修饰性的词语，强调这次比较严重的交通堵塞，是特指的概念。