在五月二日英语：on May 2nd。on表示时间,用于星期、日期（包括该天的各部分）.如：on Sunday／Sundays,on Monday morning／afternoon／evening等.

May：n.五月

复数： Mays

例句：

Thank you very much for your letter of May 2nd, 1993, in which you proposed to do business with us on consignment basis.

贵公司1993年5月2日函，建议贵我之间进行寄售业务，谢谢。

We began work on the project in May.

我们于五月份启动了这项工程。

The last time I saw him was in May.

我上次见到他是在五月份。