航天科工集团六院46所:如何对within a month 提问

如何对within a month 提问 in a day 和within a day 怎样提问 a two-month 翻译:Twice a month after a month 和in a month 有什么区别? 分别翻译:once a month.和twice a month .和three time a month. two and a half month(s),month后加不加s two and a half month(s),month后加不加s？？ 请问Deep within a blackened heart是什么意思？ More than a month 是什么意思啊???