Apples and oranges binomial
Used to refer to two objects or people that are very different
Although they are brothers, they are like apples and oranges.
These restaurants are apples and oranges, so we cannot compare them.
To be totally different from something.
The idea of this metaphor came from the difference of apples and oysters, which was first recorded in John Ray's proverb collection of 1670.
The associates of public figures must not be suspected of being a part of any impropriety.
After being fired due to my brother's inappropriate behavior in the public, I finally understood the saying: "Caesar's wife must be above suspicion."