grading certificate英语标准发音：grading certificate英式发音：美式发音：翻译中文等级证书grading certificate - 基本释义[词典1]品级证明书grading certificate - WEB词典grading certificate品级证明书考级认证gia diamond grading certificateGIA钻石分级证书Rough Grading Certificate初步土地平整合格证 参考资料： 1.百度翻译：grading certificate2.有道词典：grading certificate3.爱词霸：grading certificate
