grey-haired
White hair, a Chinese idiom, Pinyin is B á if à C à ngy á n, which means that the hair is white and the face is gray; it describes the old people's old appearance. From "Rong Zhai Wu Bi Bai Su Shi Ji Nian Sui".
The origin of Idioms
Song Hongmai's "Rong Zhai Wu Bi · Bai Su Shi Ji Nian Nian Nian Nian Nian Nian Nian" says: "white hair, 53, family forced to send to try spring shirt."
Idiom usage
Subject predicate; as predicate and attribute; to describe the old man
grey-haired
lie with one 's head pillowed on a spear , awaiting the enemy - zhěn gē dài dí
outwardly strong but inwardly weak - wài qiáng zhōng gān
content is no more important than diction - lǐ bù shèng cí