better than grass roots and tree bark.Once it is widely promoted, the food problem that has plagued the Qin Empire for hundreds of years can be solved by half.Originally, Li Chen was just trying it o...ial rank was significantly higher than Xu Junlou's.Otherwise, he would not have been eligible to take the palace examination, but Xu Junlou lost that opportunity.What truly bothered Hou Yushu was the...