n.月刊（monthly的复数）；月经（同menses）

The bookstore sells all the computer monthlies. 这家书店出售所有的计算机月刊。

I can live for two monthlies on a good compliment. 只凭一句赞美的话我就可以充实地活上两个月。

She had never been regular in her monthlies, and she was probably less so now, with the excitement. 她的月事从来没有规律，就是现在，她间或缺乏激情。