I traveled to Phoenix two days ago and heard a Miao folk song.

That is to say, if my sister comes to see me;

If my sister comes to see me, don't go that way; There are many poisonous snakes on the path, and I am afraid of biting my sister's foot.

If my sister comes to see me, don't take that train. There are many hooligans on the train. I'm afraid my sister will be moved by others.

If my sister comes to see me, don't take that plane. There are many rich people on the plane. I'm afraid my sister will live with someone else.

If my sister came to see me, you would come out of that dream. It's just you and me. You can do whatever you want.