小美, do you know why we use measure words?

I don't know, is it because they sound nice?

That's part of it, but the most important reason is to make things clearer.

How does it make things clearer?

For example, if we say 'a cup of water' and 'a fish,' 'cup' tells us the water is in a cup, and 'fish' tells us it's something long and thin.

Oh~ so we can't just use any measure word?

Right, each measure word has a special meaning to help us tell what things are like.

Then I want to learn more measure words too!