yellowed paper 变黄的纸
yellowed teeth 变黄的牙齿
yellowed edges 发黄的边缘
A: Why do these documents look so old?
A：为什么这些文件看起来这么旧？
B: The paper has yellowed because it was stored in the sun.
B：由于一直存放在阳光下，纸张已经变黄了。
1) 形容词，指变黄的
2) 动词yellow的过去式或过去分词
1. 变黄的
adjective
1. Having become yellow, especially due to age or exposure to sunlight.