Mark suddenly remembered something and blurted out, “Oh right, Teacher, there was a medicine that appeared at an auction in China before. It was very popular and called Yixinwan. It is said to be made...ook, and it really was an airplane from the Li family!!He was overjoyed and immediately called his husband, "Sir, Miss Ou Yan's plane has arrived."Let me know if you have more text you'd like me to tr...