Grapes are small green or dark purple fruit which grow in bunches. Grapes can be eaten raw, used for making wine, or dried.
PHRASE
酸葡萄心理（指因得不到想要的東西便說它一文不值）
If you describe some-one's attitude as sour grapes, you mean that they say something is worthless or undesirable because they want it themselves but cannot have it.
例句
These accusations have been going on for some time now, but it is just sour grapes.這些指責到現在已經持續了一段時間，但這不過是吃不到葡萄說葡萄酸罷了。
英英詞典釋義
Noun
1. any of various juicy purple- or green-skinned fruit of the genus Vitis; grow in clusters
2. any of numerous woody vines of genus Vitis bearing clusters of edible berries