【醫(yī)】 regurgitant menstruation

逆行的英語翻譯：

go in the wrong direction; regression; retrogradation; retrograde; stem
stem against; thrash
【機】 back; back run; backing

月經(jīng)的英語翻譯：

menses; menstrual flow; menstruation
【醫(yī)】 catamenia; courses; emmenia; flow; flowers; lunaria; meno-; menorrhea
menses; menstrual flow; menstrual flux; menstruation; monthlies
monthly sickness; regel