就是要香恋哪一集污:翻译:Twice a month

翻译:Twice a month 分别翻译:once a month.和twice a month .和three time a month. 一月一次是once a month ,两次是 twice a month，是不是三次后都是序数词？ a month or two's absence应怎么翻译 a two-month month请翻译 once a week twice a week........ after a month 和in a month 有什么区别? MAYBE ONCE OR TWICE A WEEK two and a half month(s),month后加不加s