1. かんかく(間隔)
    • 5分置きに電車が着く
    • A train arrives every five minutes.
    • 1か月置きに
    • every other month
    • 3軒置きくらいに飲み屋がある
    • About every fourth building is a bar [pub].
    • 街路には5メートル置きに木が植わっている
    • The street is lined with trees standing at intervals of five meters.