greying hair 变灰的头发
greying population 老龄化人口
slowly greying 逐渐变灰
greying society 老龄化社会
A: Have you noticed your hair is greying?
A：你注意到你的头发在变灰了吗？
B: Yes, a little, but I don't mind.
B：是的，有一点，但我不介意。
1) 头发逐渐变灰
2) 人口或群体老龄化
3) 物品逐渐褪色或老化
1. 头发变灰或白的过程
2. 逐渐老化、衰退的状态
adjective
1. Becoming grey or white, especially of hair; showing signs of aging.
verb (present participle)
1. The act of turning grey or aging.