Life is sort of tradeoff. You lose something, you get something. Or, you may also say: you get something, you lose something.

• 在我的理解中，幸福婚姻的前提是：两个人价值观一致、坦诚相对、心灵相通，有共同的兴趣爱好、生活上能够同一步伐进步。