a recurring cycle (beginning at menarche and ending at menopause) in which the endometrial lining of the uterus prepares for pregnancy; if pregnancy does not occur the lining is shed at menstruation
双语例句
1
So can menstrualcycles affect sporting performance?
那么，生理期会影响运动表现吗？ ？
2
It is a popular belief that women who live together synchronise their menstrualcycles, and that it's mediated by their pheromones.
大多数人认为住在一起的女性经期会同步，并且这是由她们的信息素调节的。
3
Along with women's menstrualcycles, other things that cause changes in hormone levels may also worsen or improve asthma symptoms. These include.