About Scala's trait

I've been learning Scala for the last one months, and I have a little feeling about trait today, so write it down ...

Trait is called a trait in Scala, and in my personal understanding, trait is equivalent to the combination of interface and abstract class in Java, and can be mixed with multiple trait, and can be written in trait to implement the specific method, With this trait, you can use the trait method in the class, and other classes when calling a method, if the class does not have this method, it will go to trait. And atrait is mixed with another btrait, all subclasses mixed with atrait have all non-abstract methods of btrait.

About Scala's trait