How accurate the accredit action that holds superintend and director to check?如何准确把握督查的授权行为?How to strengthen trade on the net superintend?如何加强网上交易监管?He was appointed to superintend the toy department.他获任玩具部的负责人....
石料开始被用作盖屋顶的材料。Stone began to be used as a roofing material.这座雕像是用整块石料雕成的。The statue was carved out of a single piece of stone.大理石是一种珍贵的石料.Marble is a precious stone....