Do you have a foreign son-in-law? What jokes did they make when they first came?

A friend of mine is from America. He once went to the street and asked me why people from China were everywhere on the street. China is good at construction, China is good at industry and commerce, China is good at agriculture, and some of them are simply "China is good". Say that finish, I pointed to the outside not far away. It turns out that a foreign friend refers to a bank.