There was a doctor who claimed to be good at treating surgical¹ cases.

有位医生，自称擅长治疗外科疾病。

One day, a general was struck by an arrow from the enemy on the battlefield. The arrow had penetrated² into his flesh, so he called for the "surgeon".

一天，有位武将在战场上中了敌人的飞箭，箭头穿进了皮肉。他命人请来了这位“外科”医生。

The general told him what had happened. The "surgeon" said repeatedly:

武将把情况对这位“外科”医生一讲，他连声说:

"The treatment is easy! The treatment is easy!"

“好治!好治!”

He took up a pair of sharp scissors, and with a snap cut off the exposed arrow shaft³. He handed over the arrow shaft to the general and said:

只见他拿起一把锋利的剪刀，“咔嚓”一声，把露在皮肤外面的箭杆剪掉了。他就把箭杆交给武将，说:

"It's done. Please give me my pay."

“好了，请你付酬金吧!”

These words left the general not knowing whether to laugh or to cry. He said to the "surgeon":

武将被他弄得哭笑不得，对“外科”医生说:

"The arrow head is still in my flesh. You must get it out quickly."

“箭头还留在皮肉里面，必须赶快取出来呀!

The "surgeon" said:

”这位“外科”医生说:

"The arrow head in the flesh is a matter of internal medicine and has nothing to do with my `surgery'.，，

“箭头在皮肉里面，这是内科的事了，与我‘外科’无关。”