Lightfastness
n. 耐光
🗣️ 情景例句
They concluded that the goods were of good quality and proved no problem.
他们断定货物质地优良，并证明没有任何问题。
Fish begins to stink at the head.
上梁不正下梁歪。
He was smiling hopefully.
他满怀希望地微笑着。