诊断书 (zhěn duàn shū) — medical certificate (official document from a doctor or hospital stating a diagnosis)

Definition

Examples

• 医生给我开了一张诊断书。
  Yī shēng gěi wǒ kāi le yì zhāng zhěn duàn shū.
  The doctor issued a medical certificate for me.
• 请假需要交诊断书。
  Qǐng jià xū yào jiāo zhěn duàn shū.
  You need to submit a medical certificate to take leave.
• 这张诊断书是三个月前开的。
  Zhè zhāng zhěn duàn shū shì sān gè yuè qián kāi de.
  This medical certificate was issued three months ago.