我之前是在一家医药公司担任销售内勤的翻译：Before I was at a pharmaceutical company as a sales office 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

Before I was a pharmaceutical company as a sales desk

Before I was at a pharmaceutical company as a sales office

In front of me is holds the post in a medicine company sells the office work

Before I was in a pharmaceutical company as a sales back office

Before I was at a pharmaceutical company as a sales office