Conditions on the oil rig are very unpleasant. You'd go insane if you had to stay more than a month or so.石油钻台上的工作条件非常糟糕。如果要逗留一个月左右的时间，你会发疯的。The war had ended only a month or so before.战争大约一个月前才刚刚结束。Such a situation will sputter on for a month or so.这种困难局面还将持续一个月左右。