A doctor cannot treat an illness until he has made a diagnosis.
不经诊断，医生不能对疾病进行治疗。
A doctor cannot treat an illness until he had made a diagnosis.
医生在诊断前，无法治愈任何疾病。
Doctors need to make a diagnosis before he can treat an illness...
医生需先做诊断后，再治疗疾病。
Doctors need to make a diagnosis before he can treat an illness...
医生需先做诊断后，再治疗疾病。
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