When can I say "说差了"? I'd like to know when I can say "说差（了）". My dictionary says the "差" means 错误 which means "wrong" in English but I'm still not clear on the usage of 说差. Is it the same as 说错? It would be appreciated if you give me some examples like short conversations that show how 说差 is used. Thanks in advance.
Usually we just say 说错了 if we found we made a mistake in a talk or statement. 说差了 is not a common usage for 'I made a mistake' regarding to what you said. I wonder if you actually want to discuss about 说岔了 instead of 说差了. 说岔了 usually means 'misunderstanding on either the topic or the opinion caused by confusing words/expression/context'. For example, when a group of friends are discussing about 吃醋 in a context to compare which vinegar is the best; you jumped in and told them that your girl friend likes 吃醋 (be envy of other girls you know). They may told you that 你说岔了!