• 1. 每隔两: every two or three years
• 2. 每隔两天: every third day | every three days | every two days | every three days every third day
• 3. 每隔两周: Every two weeks

更多释义

• 1.这种治疗方法应该每隔两到三小时重复一次。
  The treatment should be repeated every two to three hours.
  dict.yoduao.com
• 2.每隔两层，每幢建筑曲线梯形的两条不相等的短边就会改变其几何形状。
  The two unequal shorter sides of the curvilinear trapezoid of each building change their geometry every two floors.
  dict.yoduao.com
• 3.怀孕到36周前每隔两周要看一次医生，36周后开始必须每周都要去医生那儿检查一次，直到您分娩为止。
  You should see your doctor every 2 weeks until 36 weeks, then once a week until you deliver the baby.
  dict.yoduao.com

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