at intervals (間隔をあけて): The trees were planted at intervals of ten meters. (木々は10メートルの間隔で植えられました。) - 試験に出る! 英単語検索辞書

at intervals (間隔をあけて): The trees were planted at intervals of ten meters. (木々は10メートルの間隔で植えられました。)

The trees were planted at intervals of ten meters.