Translation

• at set dates
• at regular intervals
• periodic
• limited to a fixed period of time
• fixed term

Synonyms

• 为期, 年限, 时限, 期, 期限, 限期

Examples

• 请定期填写。
  Fill it with regular, please.
• 大部分大不列颠的男人定期送巧克力作礼物给他们的合伙人，尤其是在他
  Almost half the men in Great Britain regularly give chocolate to their partner, especially for their birthday.