Couples may start to look like each other because in some ways they already are like each other.
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3. 汉代家族内部犯罪的主要内容为亲属相犯与夫妻相犯。
The crimes within family groups in Han Dynasty consist of the infringement among the relatives and the infringement between couples.
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4. 相似性能预测到一段婚姻是否会成功,人们也解释不清这个现象,相处久了,夫妻之间就有了夫妻相。
Similarity predicts the success of a marriage and through a phenomena people aren't exactly sure about, couples become more and more similar over the course of a relationship.