医生需要先确认这份医疗报告才能提交。
The doctor needs to ___certify the medical report before submitting it.
医生需要认证这些医疗报告的真实性。
The doctor needs to ___certify the authenticity of these medical reports.
医生需要认证这份出生证明的真实性。
The doctor needs to ___certify the authenticity of this birth certificate.