half-hourly

• 形容每半小时发生一次或每半小时做一次的事情，也指以三十分钟为间隔的。

Describes something that occurs or is done every half hour.

1. Occurring every half hourB1formal

   Happening or appearing at intervals of thirty minutes.

   每半小时一次

   • The half-hourly news bulletin keeps listeners updated.
   • We have a half-hourly check on the equipment.
   • The bus service runs on a half-hourly schedule.

• 副词，表示“每半小时一次”或“以三十分钟为间隔发生”，用于描述动作或事件的频率。

An adverb meaning 'every half hour' or 'occurring at intervals of thirty minutes.' It is used to describe the frequency of an action or event.

1. Every thirty minutesB1formal

   Occurring or done at intervals of thirty minutes.

   每半小时

   • The train departs half-hourly from the station.
   • The medication should be taken half-hourly as directed.
   • The weather report is updated half-hourly during the storm.