他们的爱日渐牢固，而当我看到他们越来越亲密的时候，我的心里就会充满自豪。

Their love grew stronger every day, and my heart swelled with pride as I saw them grow closer together.

youdao

如果你对她的爱一直是牢固的，她也不会离开你。

If you keep your love strong for her, she won't go away.

youdao

如果你们已经有了孩子，可以考虑结婚，使你与子女之间爱的纽带更牢固。

If you have kids together you may consider getting married to enforce the bond of love that already connects you through your children.

youdao