Only marriage based on love is ethical.

只有以爱情为基础的婚姻才是合乎道德的。

youdao

Only the marriage based on love is moral.

只有以爱情为基础的婚姻才是合乎道德的。

youdao

In my opinion, the marriage based on love can last longer than that based on other external factors, and true love is the strong bond of marriage.

依我之见，基于爱情的婚姻比基于外在因素的婚姻更长久，真爱是婚姻的纽带。

youdao

Our marriage is based on a deep love, mutual trust and understanding.

CNN: A New Flag