nà xiē / zǒu jiē chuàn xiàng / de / jiāng hú yī shēng / wǎng wǎng / méi yǒu / zhèng guī / de / yī xué / zī zhì

那些走街串巷的江湖医生往往没有正规的医学资质。

Those itinerant quacks often lack proper medical qualifications.