calendar month
lunar [solar, synodic] month
month after month 一月又一月,每月;陆续地;无休止地
month by month 逐月,月月
month in, month out 月月,每月
the month after next 下下一个月
the month before last 上上个月
this day month=today month 下[上]一个月的今天
this [last, next] month 这[上、下]个月
for months (长达)好几个月
She was in her 8th month. 她怀孕八个月了.