求翻译：人人网在维系用户消费上做出了许多努力。首先，他会对用户好友的生日进行提醒，并给出礼物选项。这些礼物中有少量免费的，但外观和质量较收费的都会有所下降。通常，礼品收费越高，品质越佳。此外，礼物可以被定时送到好友处，同样定时发送也是要收取一定的紫豆。例外，紫豆还可以用于购买主页皮肤和背景音乐等，使用户的个性化需求得到满足。是什么意思？

Everyone the network has made many efforts to maintain user consumption. First of all, he would be the user's friends birthday reminder, and give the gift option. These gifts have more charges in a small amount of free, but the appearance and quality will decline. Typically, gifts and fees the highe

Everybody net expended in the maintenance user on has made many diligently.First, he can carry on the reminder to the user good friend's birthday, and gives the gift option.In these gifts has few free, but the outward appearance and the quality collect fees all can have the drop.Usually, the present

Renren has made many efforts to maintain user consumption. First, he reminded the user friends birthday, and give a gift option. The gift of a limited number of free, but a charge of appearance and quality will decline. In General, gift fees higher quality better. In addition, the gift can be schedu