Translation

• first (of two parts)
• last (week etc)
• previous
• the above

Examples

• 今个月的钢铁产量和上个月比起来，估计会上升两个巴仙。
  Steel production will increase 2% this month from last month.
• 上个月，我们20岁的女儿生了个女孩。
  Last month our twenty-year-old daughter gave birth to a baby girl.