一个最好的销售人员，一定要完全了解他销售的产品，以及产品的原材料的翻译：One of the best sales people, it is important to fully understand his sales of products, as well as products of raw materials 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

One of the best sales people, it is important to fully understand his sales of products, as well as products of raw materials

A best sales personnel, wants certainly to understand completely he sells product, as well as product raw material

One of the best sales personnel must be fully aware of his sales of products, as well as the raw material products

One of the best sales people, it is important to fully understand his sales of products, as well as products of raw materials