患难夫妻
      Explanation: Distress: anxiety and suffering. Refers to the hardships undergone tests to the couple through thick and thin.
      Source: Tang Yuan Zhen "severance sad pregnant two" love to know Cihen everyone, poor and lowly misery. "
      Examples: With the happy couples I'm afraid, do not ~ out. (Qing, Culture and Sport "Heroic Biography" twenty-third back)