〔間の時間に〕in the intervals ((between));〔暇な間に〕in one's spare time

    • 合間合間に
    • at odd moments
    • 授業の合間に学生と会う
    • I see students (in the intervals) between classes.
    • 合間にこの仕事をやっておいてくれ
    • Get this work done in your spare time.