昨天晚上9点钟我正在给他发送电子邮件的翻译：Last night at 9 o'clock I was to send him e-mail 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

9 o'clock last night I was sending him an e-mail

Last night at 9 o'clock I was to send him e-mail

Yesterday evening 9 o'clock I was transmitting the email for him

I am in the process at 9 o'clock yesterday he sent an e-mail to

Last night at 9 o'clock I was to send him e-mail