名词
中文翻译：唇下沟
同义词：
['lip incisor sulcus', 'labial sulcus例句：1. The dentist carefully removed the tooth with a small instrument.（牙医用一个小工具小心地取出了这颗牙齿。）']
例句：
-
1. The dentist carefully removed the tooth with a small instrument.
牙医用一个小工具小心地取出了这颗牙齿。
-
2.The patient's lip was slightly raised as he spoke.
病人说话时嘴唇微微上扬。
-
3. The surgeon performed the surgery under local anesthesia.
外科医生在局部麻醉下进行了手术。