共同生活

• symbiosis
• bed and board
• mutualism

例句

1. 在你们订婚之际，请接受我最美好的祝愿。我希望你们在共同生活中无比愉快，无比幸福。
   Best wishes from me on your engagement. I hope you will have nothing but joy and happiness in your life together.
2. 他们结为夫妇共同生活了很多年。
   They lived together as husband and wife for years.