during

• 介词 during 表示某事发生在某个时间段内、某个事件过程中或某项活动期间。

The preposition 'during' indicates that an action, event, or state occurs at some point within or throughout a specified period of time, event, or activity.

1. Throughout a period of timeA1formal

   Indicates that an action or state continues for the entire duration of a specified time period

   在整个期间

   • It rained during the night
   • She remained silent during the meeting
   • He slept during the whole film

2. At some point within a time periodA1formal

   Indicates that an action or event occurs at an unspecified moment within a specified time frame

   在……期间，在……时

   • I'll call you during the day
   • She arrived during the afternoon
   • The phone rang during dinner

3. In the course of an event or activityA2formal

   Indicates that something happens while a particular event, activity, or situation is taking place

   在……期间

   • Please remain seated during the performance
   • He fell asleep during the lecture
   • Many questions were asked during the discussion

4. Within a historical or seasonal periodB1formalpolitical

   Used to refer to actions or events that occurred within a broader historical era, season, or extended timeframe

   在……期间；在……时期

   • Many innovations appeared during the Renaissance
   • Birds migrate during spring
   • The treaty was signed during the Cold War

5. Simultaneity with a state or conditionB2formalmedical

   Indicates that an action occurs while a particular state, condition, or circumstance exists

   在……期间；在……状态/条件下

   • He improved significantly during his recovery
   • Many changes occurred during her absence
   • She learned a lot during the crisis