Chalk and cheese的意思

"Chalk and cheese" is an English idiom that means two things that are very different from each other, just as chalk and cheese are two very different substances. It suggests a contrast between two things that are not just different, but fundamentally incompatible or not to be compared.

For example, you might say:

"Their tastes in music are like chalk and cheese."

This means that their preferences in music are so different that they cannot be compared to each other. The idiom is often used humorously to highlight the contrast between two people, things, or ideas.