to know product knowledge
了解产品知识
以上为机器翻译结果，长、整句建议使用 人工翻译 。
They help buyers satisfy their wants and needs, they know the product and can effectively communicate their knowledge to buyers face to face.
他们有助于满足消费者的需求，他们了解产品也可以运用他们的知识与消费者有效的面对面沟通。
youdao
You and I both know that you can give people the product knowledge they need to sell just about any gizmo or service.
FORBES: Move up http://i.forbesimg.com t Move down
应用推荐
模块上移
模块下移
不移动