depressor muscle of lower lip

例句：

1. 1.The patient's face was pale, and his lips were slightly depressor.
   病人的脸色苍白，嘴唇有些下垂。
2. 2. During the speech, she used her depressor muscles to emphasize her points.
   演讲时，她利用下唇肌肉强调要点。
3. 3. The doctor advised him to exercise regularly to strengthen his depressor muscles.
   医生建议他定期锻炼以增强下唇肌肉。