history既然是不可数名词,那为什么China is a country with a long history中a long history有a

如果翻译为『记录』则是可数名词了.
附《柯林斯大辞典》的解释：
[N-COUNT] If a person or a place has a history of something,it has been very common or has happened frequently in their past.记录
[N-COUNT] 意思是名词（N）,可数（COUNT）.
如有不懂欢迎继续追问!