I'm teaching sour and sweet. What kind of fox is a fox?

The fox "can't eat grapes and says grapes are sour".

This lesson is a very vivid and interesting fairy tale, which is arranged in the form of a comic book and is an intensive reading text. "You can't eat grapes and say grapes are sour", which is a joke made by the fox. The fox used this "spiritual victory method" to get psychological comfort, but it puzzled the little squirrel and the little rabbit. If the little monkeys didn't dare to taste it themselves, they would all miss this delicious meal. It tells us to try things ourselves and not just listen to others.