医生必须时常防备以免被感染疾病的翻译：Doctors are often prepared so as not to be infected diseases 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Doctors must always guard against to avoid being infected with diseases

Doctors are often prepared so as not to be infected diseases

Doctor must often guard against in order to avoid is infected disease

Doctors must frequently preparedness so as to avoid being infected with disease

Doctors are often prepared so as not to be infected diseases