Definition: an official document that gives details to show that something is true Level: B1
请携带你的出生证明去面试。
Please bring your birth ___certificate to the interview.
病假需要医疗证明。
A medical ___certificate is required for sick leave.
你应该获得 PET 证书来证明你的英语水平。
You should obtain the PET ___certificate to demonstrate your English level.
