For Ling Ran, suturing the egg membrane was actually a simpler task.
In other words, it was easy for someone who was able to do it, but it was not for those who did not.
Engraving on an egg was like copying a text. Instead of the basic part, the difficulty increased along the increased number of words. For a normal attending physician like He Liang, when he was lucky, he could engrave one or two big words on the egg, but the reason he could not engrave more words was because he had a certain probability of error. If he made a mistake, he would fail completely. Therefore, forcefully engraving one or two words was already his limit.
However, suturing the egg membrane did not require that much attention to detail. This was like solving a math problem. If he did not know how to do it, he would not know how to do it. Not much work was needed, and it would also not give him the chance for him to make a mistake.