every other Monday

every other line
一行［1ライン］おきに

every other Monday
隔週月曜日に

every other month
1カ月おきに、隔月に、2カ月ごとに

every other night
一晩おきに

every other Saturday
隔週土曜日に

every other Saturday off
隔週土曜休み

every other Sunday
隔週日曜日に