grape是不是可数名词

　　例句2：The team analysed tomato, apple, plum, peach, pear, grape and apricot waste such as the skin, revealing them all to be good sources of antioxidants.

　　“研究小组在对废弃的番茄，苹果，李子，桃，梨，葡萄，杏分析后表明，这些果皮都是抗氧化剂的较好资源。”

　　例句3：He said he didn't like that job anyhow, but that was just sour grapes.

　　“他说他不喜欢那份工作，但这只是他吃不到葡萄说葡萄酸。”