71 swing n. a big or sudden in people's opinion, emotion,
? mood swing
2.food craving
3.be to blame
4.PMS is interfering with your daily activities
5.irritate v.
1)to make your body sore or painful
2)to make sb angry,impatient
stimulate v. to make sth active
6.scar tissue
scar
7.the leading preventable cause
the leading= firstly
8.contract? v. beome less or smller
? ? the contraction and expansion of blood vessels
