【大姨妈来了】

1. My period is coming today. 我今天来那事。
2. I'm having my period. / I'm on my period. 我现在是月经期。
3. My aunt Flo is visiting. 我的大姨妈来了。
4. She's bitchy tonight. It must be that time of the month. 她今晚真暴躁，铁定是来大姨妈了。