/ˈdjʊərɪŋ; US ˈdʊər- ||; ˈdυrɪŋ/prep within the period of time mentioned 在…期间:
During the summer holidays we went swimming every day. 暑假里我们每天都去游泳。Grandpa was taken very ill during the night. 夜里爷爷病得好厉害。 Notice that you use during to say when something happens and for to say how long something lasts I went shopping during my lunch break. I was out for about 25 minutes. 某事在什么时候发生﹐用during﹔说某事持续了多久﹐要用for﹕I went shopping during my lunch break. I was out for about 25 minutes. 我趁午饭的时候去买东西﹐我出去了大约２５分钟。