Lightfastness Test : Very budget-friendly KOH-I-NOOR Round Watercolor Set
抗晒耐久试验：非常经济实惠的酷喜乐圆盘水彩套装
All oranges, reds and grey fade more or less after being exposed in the sunlight for more than 6 months. The 2 oranges and the grey are evidently too fugitive, while the 3 reds are still pretty strong.
在阳光下曝晒了超过6个月后，所有桔色、红色和灰色都多少有褪色。两个桔色和一个灰色显然褪色太严重，而各红色依然还是比较浓郁的。
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