白 ㄅㄞ ˊ bái 头 ㄊㄡ ˊ tóu 偕 ㄒㄧㄝ ˊ xié 老 ㄌㄠ ˇ lǎo 白 ㄅㄞ ˊ bái 頭 ㄊㄡ ˊ tóu 偕 ㄒㄧㄝ ˊ xié 老 ㄌㄠ ˇ lǎo (to live together until the) white hairs of old age (idiom); to live to a ripe old age in conjugal bliss until death do us part