较多小费与良好服务之间的联系是非常微弱的：小费的多寡中只有很小一部分同服务质量有关。
The correlation between larger tips and better service was very weak: only a tiny part of the variability in the size of the tip had anything to do with the quality of service.
对于时装零售业服务质量的评估，售货员拥有良好的产品知识是重要的。
The sales associate with good product knowledge is important for the evaluation of fashion store's service quality.
热情、谦和，与客人建立良好的关系，不断提升服务质量。
Be warm, modest, and establish a good relationship with the guests, and improve service quality.
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