Director Wu, who had been struggling to think, suddenly slapped his thigh hard after hearing Lan Changhua's question. How did I not think of that! He immediately became troubled.
On the other hand, Cao Binghe was now in Director Wu's previous situation, looking utterly perplexed. Is this house not good? he wondered. Is there still room for improvement? Based on what Du Heng just said, this house must already contain more than ten types of Medicine Ingredients, right? If even more are added, can the medicinal properties still be controlled?
However, Du Heng's heart stirred. Lan Changhua is still Lan Changhua, he thought. Such keen insight and experience—truly extraordinary.
Du Heng squinted, wrinkled his nose, and pursed his lips tightly, as if racking his brains. After a good while, he looked up and asked Lan Changhua, "Professor Lan, do you have any good suggestions?"
