the hair and beard become all white
As a Chinese idiom, Pinyin is x ū f à Ji ē B á I, which means that the beard and hair are all white. It refers to the high age. From the outlaws of the marsh.
The idiom comes from the second chapter of Shi Naian's outlaws of the Marsh: "the Taigong is nearly sixty years old, with white hair and whiskers, wearing a warm hat to cover the dust, a wide shirt with straight seams, soap silk tapers around his waist, and ripe leather boots on his feet."
the hair and beard become all white
take instant advantage of an opportunity that comes only once in a long while - mù tù gù quǎn
untrammeled and romantic in character - tì tǎng bù jī