兽医及卫生证明书 Veterinary and sanitary certificate
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他也没法出示生病的医生证明书。
He could not show the certificate from a doctor about his sickness.
youdao
请提供所有医生证明书及收据以作证明。
Please submit the doctor's certificate and receipt (s) to substantiate your claim.
医生已经给你开好了证明书。
The doctor has written a certificate for you.
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