How much do you know about 70 traditional cultural allusions in China?

In ancient China, there was a scholar named Zhou Yu. Once, a friend gave him his favorite eel. It happened that this day was idle. Zhou Yu was so amused that she tried her cooking for a long time and wanted to cook a pot of stewed eel soup.

Zhou Yu put the eels in the pot and let them swim freely in cold water. Heat the pot slowly with a small fire, and the water temperature will rise a little, so that the eel will be cooked slowly and will not be noticed. It is said that the eel cooked in this way has not struggled to be slaughtered, and the meat quality will not be tight, and the taste is the best.

When the soup was boiling, Zhou Yu lifted the lid and found a strange phenomenon. The body of an eel in the pot arched upward, leaving only its head and tail in the boiled soup. The eel's whole abdomen bends upward out of the water until it dies. It keeps this posture and does not fall down.

Seeing this situation, Zhou Yu is very curious. He quickly fished out the eel and cut open its belly with a knife to see why it bent so hard. Zhou Yu was surprised to find that the eel's stomach was full of fish eggs, and the number could not be calculated. It turned out to be to protect their children.