長相廝守

长相厮守
chángxiāngsīshǒu
(of a couple) to stay together for life

CEDICT

  1. (of a couple) to stay together for long
  2. to stay together for long

Wiktionary

情愛歷久彌堅的永遠相守在一起。

重編國語辭典

Entry Composition

=1 長相 zhǎngxiàng
  1. appearance
  2. looks
  3. profile
  4. countenance
=1 長相 chángxiāng
  1. (used in some phrases) at/to/with/… each other for long
  2. at/to/with/… each other for long
2 廝守 sīshǒu to stay together; to rely on one another