Meng Chencheng waited for his second brother to leave the door and ran down the stairs.

"Brother Shangxian."

Lin Shangxian put the medicine box into the basket on the front of the bicycle, and heard someone screaming behind him and turned around and saw Xiao Wu of the Meng family: "Chencheng?"

"I have something to ask you." Meng Chencheng said, his little hand facing his little hand, and his small eyes turned at him, begging him.

Lin Shangxian couldn't bear to see the little girl in a dilemma and said, "Let's go, let's sit there."

The two of them walked to a long bench in the nearby community and sat down.

"What's the matter?" Lin Shangxian turned his head and looked at the little girl and asked.

"Is my fourth brother so ill that he is not Leilei's fourth uncle? What does this mean?"

Lin Shangxian was shocked, but hesitated that the Meng family Xiaowu asked him such a question, "You need to ask this one--"

"Aren't you a doctor?"

"I'm a doctor, but I'm not-"

"Why is my fourth brother talking nonsense? Are there any differences between my fourth uncle and my fourth uncle?"

"He, he is not confused-" Lin Shangxian felt that he was asked by the little girl that he was about to lose his skin. No wonder everyone in the Meng family said that only Ning Yunxi could withstand countless whys of the little girl. If he could run now, he would definitely run far away.

"Brother Shangxian, look back at me." Meng Chencheng said with his little mouth pouting. Why is even the gentlest doctor brother who even felt that she was lying to her?

Lin Shangxian couldn't help but lift the back of his hand and wiped the sweat beads on his forehead, saying, "Chencheng, you haven't learned biology class yet, are you? I'll tell you that I'm afraid you won't understand."

"You talk first, I don't understand and then ask."

The little girl's stubborn little eyes shot over, and he couldn't escape at all. Lin Shangxian had a sudden idea and thought: "Okay. Let me tell you, the biological difference between having a genetic relationship and no genetic relationship."

Look, what he said was so profound, and the little Wu of the Meng family really couldn't understand it. After saying this, Lin Shangxian immediately made a decision to get up.

"Wait!" Meng Chencheng continued to shout, "What will happen to the genetic relationship and the absence of genetic relationship? What will happen to us?"

Lin Shangxian was pestered by the little girl so much that he could only sit down again: "What's the difference? In fact, it's all the brothers, sisters and the fourth uncle called this, and there's nothing different. The real difference should mean that if you are a relative, you can't get married and have children, because children born from close relatives will have natural incurable diseases."

After completely speaking this passage with the Meng family Xiaowu, Lin Shangxian suddenly realized how he could tell the Meng family Xiaowu so clearly. He even said whether he could get married and have children. Although he was a doctor and understood these things, generally speaking, such things should be said by elders.

Lin Shangxian immediately became nervous and his whole body became tense.

Meng Chencheng looked at his little eyes shrinking into two small circles: "If you are hiding, you can't get married? If you are not hiding, you can get married and have children? My fourth brother wants to marry Leilei?"
Chapter completed!