常見例句雙語例句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，如果經(jīng)期時常不足21天或超過35天，或整個周期完全不出現(xiàn)，則可以認定為不規(guī)則。blueberryclub.blog.163.com 返回 irregular menstrual period