基本解释[医药科学]无髓牙英汉例句双语例句Objective: To sum up and analysis the causes of failure about treating pulpless and discolored anterior teeth with the method of interior tooth bleaching.目的：总结和分析用内漂白方法治疗无髓变色前牙的失败原因。pulpless tooth更多例句词组短语短语pulpless coloured anterior tooth 无髓前牙pulpless tooth更多词组专业释义医药科学无髓牙