研究者们分析了人们对于不同明信片的回复数量。
The researchers measured how many responses they received by each type of postcard.
现在回复数已经接近1700条，并且这个数字还在上升。
The number of comments on that post is now approaching 1, 700 and is still rising.
TripAdvisor数据显示，去年酒店对负面评论的回复数量同比增加了203%。
TripAdvisor reports a 203% increase in hotel responses to negative reviews last year.
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