In recent days, the cat downstairs has been barking, and it's annoying all day long! What's going on here?

There is no way. One of the hidden dangers in the city now should be wild cats. There are many wild cats in every city and community. Cats are particularly fertile and vital, and the cries of estrus pervade people at night, such as the tragic cries of children, which have a great influence on residents in various cities. I suggest you do this. You can order something to seduce you on weekdays. When you are familiar with it, you can catch it in a cage, send it to a pet hospital for sterilization, and then release it. It's good for you, the cat and the surrounding environment. Of course, if you are too troublesome, you can't help it. At present, many responsible pet hospitals sterilize stray cats for free or charge only a sum of anesthetic fees, which is very cheap.