来访者逗留的时间过久。
和报纸杂志一样，网站最多依赖的也是网站的客流量及他们在这里逗留的时间。
Like magazines and newspapers, Web sites are most often ranked based on how many people visit them and how long they are there.
您可以利用牌九赚赠券，因为赌场经常根据您投入的赌额以及牌桌上逗留的时间给与一定的奖励。
You can use the Pai Gow earned coupons, because casinos often according to your input bet amount and time table to give a certain reward.
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