We go to the beach during the summer. During the summer, we go to the beach. 2. 作介词时，“during” 还可以表示在一个时间段内的某个时间点，意思是 “在…期间的某个时候”。 I lost my purse during the trip, but I don't know exactly where or ...

However, during is different because it can only be used with a noun phrase. So, we can say: During lunch, my phone rang. We cannot use a clause or just the ING form. 用法总结 While and during can mean ...