This apple is so sour, I cannot eat it.
Meaning: This sentence describes an apple that has a very strong, sharp, acidic taste that makes it unpleasant to eat.
Choice of Words: Apple is a simple fruit. Sour means having a sharp, acidic taste. Eat means to put food in your mouth and swallow it. When you put them together, "This apple is so sour, I cannot eat it" is a clear way to describe a fruit that is too acidic to be enjoyable.
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Related Expressions