庸医

例句：

1. 1. He was treated by an incompetent doctor who made him worse.
   他由一位无能的医生治疗，结果更糟了。
2. 2. The patient's condition improved after being treated by a skilled surgeon.
   经过一位熟练的外科医生的治疗，病人的状况有所改善。
3. 3. Many people are hesitant to seek help from an unskilled practitioner.
   许多人对寻求一个技术不熟练的从业者的帮助持犹豫态度。