28天

• It uses 28 day cycles that mirrors the women ' s moon cycle
  它使用28天作为一个周期，反映了妇女的月经周期。
• 28 days luck 15 days luck 22 days luck
  小乐-生后28天
• Which months have twenty - eight days
  哪个月有28天？
• How many months have 28 days
  有多少个月份有28天
• Have menstrual cycles of 28 days
  月经周期为28天
• How many months have 28 days
  几个月有28天？
• There is 28 days in february
  二月份有28天。
• The patient was discharged after staying at the hospital for 32 days
  结果：用药治疗28天创面基本愈合， 32天痊愈出院。
• We usually measure the strength of concrete at 28 days after which has been cast
  我们通常在混凝土灌注后28天测定其强度。
• After just 28 days , mothers had reported significantly higher
  研究仅仅进行了28天，就有年轻妈妈说她们感到非常“快乐” 。