grape是可數名詞還是不可數名詞

　　例句：

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

　　這些果皮的色素不允許摻混進葡萄汁中。

　　Is it a grape or a plum?

　　這是葡萄還是李子？

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

　　混合果汁含有各種水果，如葡萄、蘋果和梨。