不知 (bù zhī) — not know; have no idea; wonder if (introducing a polite or uncertain question)

Définition

Exemples

• 不知他什么时候回来。
  bù zhī Tā shén me shí hou huí lái.
  I wonder when he will come back.
• 不知您是否愿意参加这次活动。
  bù zhī Nín shì fǒu yuàn yì cān jiā zhè cì huó dòng.
  I wonder if you would like to join this event.
• 他不知自己做得对不对。
  Tā bù zhī zì jǐ zuò dé duì bú duì.
  He doesn't know whether he did it right.