什么产品知识，有助你跟客人的交谈？
What kind of product knowledge can help your to communicate with guest?
从哪里得知这些产品知识，会让你感觉更便捷？
Where the product knowledge posted will make you feel more convenient?
你希望如何检查会比较自然、舒服？
How do you want to check would be naturable and comfertable?
