介词

道别

保险

教育

1. 在…期间(持续地)
If something happens during a period of time or an event, it happens continuously, or happens several times between the beginning and end of that period or event.

2. 在…期间(逐渐地)
If something develops during a period of time, it develops gradually from the beginning to the end of that period.

3. 在…期间的某一时间
An event that happens during a period of time happens at some point or moment in that period.