C210 Problem reproduction

After the family doctor left, Luo Lingyun looked at Jiang Yuchen worriedly: "What do we do?" After such a long period of time, Luo Lingyun had long since gotten used to Jiang Yuchen by her side, and asked him questions out of habit.

But this time, it had made it difficult for Jiang Yuchen, it was the first time he had met with such a problem, let alone solved it, he had never even heard of it