C1139 Can President Xu Explain

"How do you know?" The man said with a disdainful smile.

He didn't believe that Xu Zhe's words could change the truth.

"Chinese medicine is very particular, great doctors are sincere, and our Chinese medicine is the same."

"Whether it's the material selection or the quality testing, we all strive to achieve perfection."

"There might be one or two that have not been discovered