American joke China joke.

An old lady from China visited Thailand. The first morning, the waiter knocked at the door and said "good morning" to the old lady. The old lady replied, "My name is Chen". So the next day, the waiter knocked on the door again and said, "Good morning". The old lady still didn't understand and replied, "My name is Chen". Later, the old lady was surprised and asked the manager, so the manager explained to her that "good morning means good morning". All you have to do is say good morning to others. "So on the third day, the waiter came again. This time, the old lady took the initiative to say "good morning". Unexpectedly, the waiter said to the old lady, "My name is Chen! ! ! "

Excuse me, are there any China jokes (which Americans don't understand and need to explain)? I hope you can tell me a few things, thank you.