He leaves a wife and two children.
他遗下妻子和两个孩子。
He's been separated from his wife for a year.
他和妻子分居一年了。
He separated from his wife after 20 years of marriage.
他和妻子在结婚20年后分居了。
Because of his wife being there, I said nothing about it.
他的妻子在场，我便没提及这事。
He went off with his best friend's wife.
他和最要好的朋友的妻子走了。