grape是可数名词还是不可数名词

　　例句：

　　The colouring pigments from the skins are not allowed to bleed into the grape juice.

　　这些果皮的色素不允许掺混进葡萄汁中。

　　Is it a grape or a plum?

　　这是葡萄还是李子？

　　Juice blends contain various fruits like grape, apple and pear.

　　混合果汁含有各种水果，如葡萄、苹果和梨。