adj.酸的；尖刻的
The large whip scorpion emits a vinegary odor when it's alarmed. 大型鞭尾蝎在受惊吓时发出一种醋酸味。
He will be hostile and vinegary right after you point out that he is hypocritical in his presence. 如果你胆敢当面说他伪善，他就会立刻翻脸，露出不悦的神情。
