「白頭到老 / 白頭偕老」

(pos:語句)
<explanation>
yue:祝賀語。指結婚之後維持婚姻直至夫妻都滿頭白髮
eng:literally to remain married until the hair of the husband and wife becomes grey; remain happily married until husband and wife are both very old
<eg>
yue:祝你兩個新婚快樂，白頭到老。 (zuk1 nei5 loeng5 go3 san1 fan1 faai3 lok6, baak6 tau4 dou3 lou5.)
eng:Wishing you both a joyful wedding and a loving marriage until old age.