基本解释

• [医药科学]经水无定经乱月经先后无定期

英汉例句

双语例句

• However, if your menstrual cycle frequently occurs more often than every 21 days or less often then every 35 days, or if a period is missed altogether, your cycle can be considered irregular.
  然而，如果经期时常不足21天或超过35天，或整个周期完全不出现，则可以认定为不规则。
  blueberryclub.blog.163.com

专业释义

医药科学

• 经水无定
• 经乱
• 月经先后无定期