Examples

她上月流产了。

She had a miscarriage last month. → 流产

银根较之上月有所松动。

Money is not so tight as it was last month. → 松动

我上月给家里邮去二百元。

I remitted home 200 yuan by post last month. → 邮

我们要力保这个月的盈利不少于上月。

We should try our best to ensure the profit of this month to no less than last months. → 力保

我把上月的薪水都花光了。

I spent all my salary from last month. → 上月

利息税已于上月1日起征。 → 起征

last month

上月 → last

yours of the 13th (day) ultimo received

你上月13日的信已收到 → ultimo