永固紫RL系二恶嗪类的高档有机颜料。
Permanent violet RL is high-grade organic pigment of carbazole dioxathion.
久违的问候，愿健康将你呵护，幸福永固。
Long-unseen greetings to health care, and happiness will you solid.
在每个子集中，永固打分数据按照用户分组。
At each subset, user rating data is grouped by user. First line for a user is formatted as.
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