serious defect英语标准发音：serious defect英式发音：美式发音：翻译中文严重缺陷serious defect - 基本释义[词典1]严重缺陷serious defect - WEB词典serious defect严重缺陷Serious individual defect product严重的单个不良serious tooth defect重度牙体缺损 参考资料： 1.百度翻译：serious defect2.有道词典：serious defect3.爱词霸：serious defect
