庭木は少しずつ大きくなり、ある時大きくなったことに驚きます。そうなった樹のサイズを元に戻す方法を具体例で説明します。An explanation in English is below. miki3の動画リストのエクセル表のURLは（The URL for miki3's video list is：）
https://docs.google.com/spreadsheets/d/1JtpGNcaoMH8F_SL3zI4uMHRgPJQHAR9G/edit#gid=1351700554
Garden trees grow little by little, and we are sometimes surprised at how large they have become. This section explains how to reduce the size of such trees.