嫡出

tā shì zǒng tǒng dí chū de ér zi

他是总统嫡出的儿子。

He is the legitimate son of the president.

tā suī fēi dí chū zài jiā què zuì shòu chǒng ài

他虽非嫡出，在家却最受宠爱。

He was not the son by the legal wife but he was the favourite child in the family.