英和辞典
  
during中A2
djú(ə)riŋデュ(ア)リンぐ
前置詞
❶~じゅう(ずっと), ~の間じゅう(throughout)
during the summer
♔基本during the summer
その夏じゅうずっと
  ⦣ during+時間的要素を含ふくむ名詞.
during all that time
during all that time
その間じゅう
There is no school during August.
There is no school during August.
8月中は授業がない.
✓POINT
この場合は during の代わりに in を使っても意味はほぼ同じだが, during のほうが in に比べて「~の間じゅうずっと」という継続けいぞくの意味が強い.
Ice covers the lake during (the) winter.
Ice covers the lake during (the) winter.
冬じゅうずっと氷がその湖を覆おおう.
❷~の間(のいつか)に
during my stay (=while I am [was] staying)
during my stay while I am [was] staying
私の滞在たいざい中に
during the day [the night]
during the day [the night]
日中[夜間]に
  ⦣ during の代わりに in を使っても意味はほぼ同じだ.
I went to sleep during the lesson.
I went to sleep during the lesson.
私は授業中に寝ねてしまった.
I would like to see you sometime during this week.
I would like to see you sometime during this week.
今週のいつかあなたにお会いしたいのですが.
  ⦣ 「~じゅうずっと」と区別するためにこのように sometime during ~ とすることもある.
During the ball game it started to rain.
During the ball game it started to rain.
その野球の試合の間に[途中とちゅうで]雨が降り出した.
教科書エッセンス
基本の意味
一定の期間を表して, ❶「期間中ずっと」という継続の意味と, ❷「期間中のいつかに」という時点の意味で用いられる.
教科書によく出る使い方
❶We're going to be away from home during the summer.夏の間私たちはずっと留守にします.
❷I will give you a call during the weekend.週末の間にお電話しますよ.