1. 1〔一つにまとめる〕file
    • 手紙をとじ込む
    • file letters/put letters in a file
    • 書類をとじ込んでおく
    • keep documents on [in a] file
  1. 2〔別の物を入れる〕
    • 報告書に参考資料をとじ込む
    • insert and fasten the reference data in a report