認證

In a sentence

• 這款產品已通過國際品質認證。

  This product has passed international quality certification.

  In this sentence, "認證" is used as a noun to indicate an official acknowledgment or certification of standards.

• 請認證自己的身份後再進行登錄。

  Please verify your identity before proceeding to log in.

  Here, "認證" is used as a verb meaning 'to verify or authenticate,' indicating the action of ensuring the correctness of identity.

• 我們需要政府的認證才能開展這個項目。

  We need government certification to start this project.

  In this context, "認證" again functions as a noun, referring to approval or certification granted by an authority.