即便愿意付正价的客人，看到身边人都在买折扣券，也会跟风选择，这就让门店陷入了“想服务正价客人、想保持合理利润却不可得”的困境。
PIN number, was sent directly to the computer. The host was responsible for all
，这一点在同城约会中也有详细论述
To: Sundar Pichai, Chief Executive Officer, Google
"isValid": true,
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