常見例句雙語例句As jade is of hard texture, carving is not done with a steel graver, but with emery by way of grinding.由於玉質(zhì)地很硬，不能用鋼質(zhì)雕刻刀雕刻，用磨光的金剛砂來雕刻。blog.sina.com.cn 返回 steel emery